/* ================ WORLD-CLASS PORTFOLIO STYLES ================ */
:root {
    /* Color System */
    --primary-color: #2563eb; /* More vibrant blue */
    --primary-dark: #1d4ed8;
    --secondary-color: #1e293b; /* Dark slate */
    --secondary-light: #334155;
    --accent-color: #f43f5e; /* Vibrant pink */
    --accent-light: #fb7185;
    --text-color: #1e293b;
    --light-text: #64748b;
    --lighter-text: #94a3b8;
    --bg-color: #f8fafc; /* Very light subtle background */
    --dark-bg: #0f172a;
    --white: #ffffff;
    --light-gray: #f1f5f9;
    --medium-gray: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    
    /* Dark Theme Variables */
    --dark-primary-color: #60a5fa;
    --dark-primary-dark: #3b82f6;
    --dark-secondary-color: #e2e8f0;
    --dark-secondary-light: #cbd5e1;
    --dark-accent-color: #f87171;
    --dark-accent-light: #fca5a5;
    --dark-text-color: #f8fafc;
    --dark-light-text: #94a3b8;
    --dark-lighter-text: #64748b;
    --dark-bg-color: #0f172a;
    --dark-dark-bg: #020617;
    --dark-white: #1e293b;
    --dark-light-gray: #1e293b;
    --dark-medium-gray: #334155;
    --dark-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.25), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
    --dark-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.25), 0 10px 10px -5px rgba(0, 0, 0, 0.15);
}

/* ================ BASE STYLES ================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    font-size: 1.1rem;
    color: var(--light-text);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    cursor: pointer;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    color: var(--secondary-color);
}

.section-title span {
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

.section-title span::after {
    content: '';
    position: absolute;
    bottom: 0.25em;
    left: 0;
    width: 100%;
    height: 0.25em;
    background-color: rgba(37, 99, 235, 0.2);
    z-index: -1;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.25rem;
    text-align: center;
    color: var(--light-text);
    margin-bottom: 3rem;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.25);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn:hover::before {
    opacity: 1;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    box-shadow: none;
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* ================ HEADER ================ */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-slow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header.scrolled {
    padding: 0.75rem 0;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--primary-color);
    position: relative;
}

.logo span::after {
    content: '';
    position: absolute;
    bottom: 0.15em;
    left: 0;
    width: 100%;
    height: 0.2em;
    background-color: rgba(37, 99, 235, 0.2);
    z-index: -1;
    border-radius: 2px;
}

.navbar {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    color: var(--secondary-color);
}

.theme-toggle:hover {
    background-color: var(--medium-gray);
    transform: rotate(30deg);
}

.theme-toggle i {
    font-size: 1.2rem;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
    z-index: 1001;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    color: var(--primary-color);
}

/* ================ HERO SECTION ================ */
.hero {
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    color: var(--white);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1499750310107-5fef28a66643?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    opacity: 0.1;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}

.hero-content {
    animation: fadeInUp 1s ease-out both;
}

.hero-image {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-content h4 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
    animation: fadeIn 1s ease-out 0.4s both;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-content h1 span {
    color: var(--primary-color);
    position: relative;
}

.hero-content h1 span::after {
    content: '';
    position: absolute;
    bottom: 0.15em;
    left: 0;
    width: 100%;
    height: 0.2em;
    background-color: rgba(52, 152, 219, 0.3);
    z-index: -1;
    border-radius: 2px;
}

.hero-content h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 2rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    color: rgba(255, 255, 255, 0.8);
    animation: fadeInUp 1s ease-out 1s both;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.hero-social {
    display: flex;
    gap: 1.5rem;
    animation: fadeIn 1s ease-out 1.4s both;
}

.hero-social a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 3.5rem;
    height: 3.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.5rem;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.hero-image .image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
    z-index: 1;
}

.hero-image:hover img {
    transform: scale(1.03);
}

.image-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    z-index: 2;
    pointer-events: none;
    animation: pulseBorder 4s infinite;
}

@keyframes pulseBorder {
    0% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(1.02); }
    100% { opacity: 0.7; transform: scale(1); }
}

.image-badge {
    position: absolute;
    bottom: -1.5rem;
    right: -1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3;
    box-shadow: var(--shadow-hover);
    animation: bounce 3s infinite;
}

.image-badge span {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.image-badge small {
    font-size: 0.75rem;
    opacity: 0.9;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ================ ABOUT SECTION ================ */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-img {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
}

.about-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(244, 63, 94, 0.3));
    z-index: 1;
    opacity: 0;
    transition: var(--transition);
}

.about-img:hover::before {
    opacity: 1;
}

.about-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.about-img:hover img {
    transform: scale(1.05);
}

.about-badge {
    position: absolute;
    top: 2rem;
    left: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 2;
    box-shadow: var(--shadow);
    animation: pulse 2s infinite;
}

.about-badge i {
    font-size: 1.5rem;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--light-text);
    line-height: 1.8;
    font-size: 1.1rem;
}

.about-tabs {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--light-gray);
    color: var(--light-text);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.25);
}

.tab-btn:hover:not(.active) {
    background-color: var(--medium-gray);
    color: var(--secondary-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.tab-content.active {
    display: block;
}

.skills-list {
    margin-top: 1.5rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.skill-info span:last-child {
    color: var(--primary-color);
}

.progress-bar {
    height: 10px;
    background-color: var(--light-gray);
    border-radius: 5px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 5px;
    position: relative;
    transition: width 1s cubic-bezier(0.65, 0, 0.35, 1);
}

.progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    animation: shine 2s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0.5rem;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    padding-bottom: 2rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0.25rem;
    left: -2rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.timeline-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.timeline-item span {
    display: inline-block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
    background-color: rgba(37, 99, 235, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
}

.timeline-item p {
    margin-bottom: 0;
    color: var(--light-text);
}

.about-cta {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

/* ================ SKILLS SECTION ================ */
.skills-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skills-column {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skills-column:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.skills-category {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 0.75rem;
}

.skills-category::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-info {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.skill-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.skill-name i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.skill-info span {
    font-weight: 600;
    color: var(--primary-color);
}

.progress-bar {
    height: 8px;
    background-color: var(--light-gray);
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    position: relative;
    transition: width 1s cubic-bezier(0.65, 0, 0.35, 1);
}

.progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    animation: shine 2s infinite;
}

.skills-tech {
    margin-top: 4rem;
    text-align: center;
}

.skills-tech h3 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.tech-stack {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}

.tech-item {
    width: 80px;
    height: 80px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--secondary-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    cursor: default;
}

.tech-item:hover {
    transform: translateY(-10px) scale(1.1);
    box-shadow: var(--shadow-hover);
    color: var(--primary-color);
}

.tech-item::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
    white-space: nowrap;
}

.tech-item:hover::after {
    opacity: 1;
    bottom: -35px;
}

/* ================ PROJECTS SECTION ================ */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--light-gray);
    color: var(--light-text);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.25);
}

.filter-btn:hover:not(.active) {
    background-color: var(--medium-gray);
    color: var(--secondary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(30, 41, 59, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-demo,
.project-code {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    transition: var(--transition);
    margin-left: 0.5rem;
}

.project-demo:hover,
.project-code:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
}

.project-info p {
    margin-bottom: 1rem;
    color: var(--light-text);
}

.project-tech {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.project-tech span {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
}

.projects-cta {
    text-align: center;
    margin-top: 4rem;
}

/* ================ RESUME SECTION ================ */
.resume-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.resume-column {
    position: relative;
}

.resume-column h3 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
    position: relative;
    padding-left: 2rem;
}

.resume-column h3::before {
    content: '';
    position: absolute;
    top: 0.5rem;
    left: 0;
    width: 1.5rem;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.resume-item {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.resume-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.resume-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    transition: var(--transition);
}

.resume-item:hover::before {
    width: 6px;
}

.resume-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.resume-header h4 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    flex: 1;
}

.resume-header span {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.9rem;
    background-color: rgba(37, 99, 235, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.resume-body h5 {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.resume-body h5 i {
    color: var(--primary-color);
    font-size: 1rem;
}

.resume-body ul {
    margin-top: 1rem;
}

.resume-body ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.resume-body ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.resume-skills {
    margin-top: 3rem;
}

.resume-skills h3 {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.skills-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    max-width: 800px;
    margin: 0 auto;
}

.skills-tags span {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.skills-tags span:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.resume-download {
    text-align: center;
    margin-top: 4rem;
}

/* Enhanced Certificate Section */
.certificates {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--light-gray) 0%, #f8f9fa 100%);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.certificates::before,
.certificates::after {
    content: "";
    position: absolute;
    z-index: -1;
}

.certificates::before {
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--primary-color), 
        var(--secondary-color), 
        var(--primary-color));
    animation: rainbow 8s linear infinite;
    background-size: 200% auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.certificates::after {
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: radial-gradient(ellipse at center, 
        rgba(52, 152, 219, 0.08) 0%, 
        transparent 70%);
    pointer-events: none;
}

@keyframes rainbow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.certificates .section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.certificates .section-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
    color: var(--secondary-color);
    display: inline-block;
    position: relative;
    margin-bottom: 15px;
    background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: titleReveal 1s ease-out;
}

@keyframes titleReveal {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.certificates .section-title::before,
.certificates .section-title::after {
    content: "✦";
    position: absolute;
    color: var(--primary-color);
    font-size: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.6;
}

.certificates .section-title::before {
    left: -40px;
    animation: floatLeft 3s ease-in-out infinite;
}

.certificates .section-title::after {
    right: -40px;
    animation: floatRight 3s ease-in-out infinite 0.5s;
}

@keyframes floatLeft {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(-10px); }
}

@keyframes floatRight {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(10px); }
}

.certificates .section-subtitle {
    font-size: clamp(0.9rem, 3vw, 1.1rem);
    color: var(--light-text);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    position: relative;
}

.certificates .section-subtitle::before {
    content: "";
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--primary-color), transparent);
    margin: 0 auto 20px;
}

.certificates-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
    perspective: 1000px;
}

.certificate-card {
    background: var(--white);
    padding: 30px 25px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border-top: 4px solid var(--primary-color);
    transform-style: preserve-3d;
    will-change: transform;
}

.certificate-card::before,
.certificate-card::after {
    content: "";
    position: absolute;
    border-radius: inherit;
}

.certificate-card::before {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(255,255,255,0.1) 0%, 
        rgba(255,255,255,0) 100%);
    pointer-events: none;
    z-index: 1;
}

.certificate-card::after {
    bottom: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, 
        rgba(52, 152, 219, 0.1) 0%, 
        transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.certificate-card:hover {
    transform: translateY(-10px) scale(1.02) rotateY(5deg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12), 
                0 5px 15px rgba(52, 152, 219, 0.2);
}

.certificate-card:hover::after {
    opacity: 1;
}

.certificate-badge {
    position: absolute;
    top: -15px;
    right: -15px;
    background: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    z-index: 3;
    animation: pulse 2s infinite, float 4s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(5deg); }
}

.certificate-badge i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.certificate-ribbon {
    position: absolute;
    top: 0;
    left: -5px;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, 
        var(--primary-color), 
        var(--primary-dark));
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

.certificate-card:hover .certificate-ribbon {
    left: 0;
    width: 8px;
    box-shadow: 2px 0 10px rgba(52, 152, 219, 0.3);
}

.certificate-image {
    position: relative;
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateZ(20px);
}

.certificate-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.05);
}

.certificate-card h4 {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    margin-bottom: 15px;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 10px;
    transform: translateZ(30px);
}

.certificate-card h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--primary-color), 
        transparent);
    border-radius: 3px;
}

.certificate-card .certificate-date {
    font-size: 0.95rem;
    color: var(--light-text);
    margin-bottom: 20px;
    font-style: italic;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.certificate-card .certificate-date i {
    color: var(--primary-color);
}

.certificate-card .certificate-description {
    color: var(--light-text);
    line-height: 1.7;
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.certificate-card .btn-certificate {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 25px;
    background: linear-gradient(135deg, 
        var(--primary-color), 
        var(--primary-dark));
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(52, 152, 219, 0.2);
    transform: translateZ(20px);
}

.certificate-card .btn-certificate::before,
.certificate-card .btn-certificate::after {
    content: "";
    position: absolute;
    z-index: -1;
    border-radius: 50px;
}

.certificate-card .btn-certificate::before {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        var(--primary-dark), 
        var(--primary-color));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.certificate-card .btn-certificate::after {
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: translateX(-100%) rotate(45deg);
    transition: transform 0.6s ease;
}

.certificate-card .btn-certificate:hover {
    transform: translateY(-3px) translateZ(20px);
    box-shadow: 0 7px 14px rgba(52, 152, 219, 0.3);
}

.certificate-card .btn-certificate:hover::before {
    opacity: 1;
}

.certificate-card .btn-certificate:hover::after {
    transform: translateX(100%) rotate(45deg);
}

.certificate-card .btn-certificate i {
    transition: transform 0.3s ease;
}

.certificate-card .btn-certificate:hover i {
    transform: translateX(3px);
}

.certificates-cta {
    text-align: center;
    margin-top: 40px;
    position: relative;
}

.certificates-cta::before {
    content: "";
    display: block;
    width: 100px;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--primary-color), transparent);
    margin: 0 auto 30px;
}

.certificates-cta .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    font-size: 1.05rem;
    background: linear-gradient(135deg, 
        var(--primary-color), 
        var(--primary-dark));
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.2);
    z-index: 1;
}

.certificates-cta .btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        var(--primary-dark), 
        var(--primary-color));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.certificates-cta .btn::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: translateX(-100%) rotate(45deg);
    transition: transform 0.6s ease;
    z-index: -1;
}

.certificates-cta .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
}

.certificates-cta .btn:hover::before {
    opacity: 1;
}

.certificates-cta .btn:hover::after {
    transform: translateX(100%) rotate(45deg);
}

.certificates-cta .btn i {
    transition: transform 0.3s ease;
}

.certificates-cta .btn:hover i {
    transform: translateY(3px);
}

/* 3D Tilt Effect */
@media (hover: hover) {
    .certificate-card {
        transition: transform 0.5s ease, box-shadow 0.5s ease;
    }
    
    .certificate-card:hover {
        transform: 
            translateY(-10px) 
            scale(1.02) 
            rotateY(5deg) 
            rotateX(2deg);
        box-shadow: 
            0 20px 40px rgba(0, 0, 0, 0.15),
            0 10px 20px rgba(52, 152, 219, 0.2);
    }
}

/* ======================
   Enhanced Contact Section
   ====================== */
   .contact {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, 
        var(--light-gray) 0%, 
        #f8f9fa 100%);
    overflow: hidden;
    z-index: 1;
}

.contact::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path fill="%232c3e50" opacity="0.03" d="M0,0 L100,0 L100,100 L0,100 Z" /></svg>');
    background-size: 300px;
    opacity: 0.1;
    z-index: -1;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.contact-info {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.contact-info:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.contact-info::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, 
        var(--primary-color), 
        var(--accent-light));
    transition: all 0.4s ease;
}

.contact-info:hover::before {
    width: 8px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 15px;
}

.contact-info h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--primary-color), 
        var(--accent-light));
    border-radius: 3px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    transition: all 0.3s ease;
    padding: 15px;
    border-radius: 10px;
}

.info-item:hover {
    background: rgba(52, 152, 219, 0.05);
    transform: translateX(5px);
}

.info-item i {
    min-width: 50px;
    height: 50px;
    background: linear-gradient(135deg, 
        var(--primary-color), 
        var(--accent-light));
    color: var(--white);
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    margin-right: 20px;
    flex-shrink: 0;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
}

.info-item:hover i {
    transform: rotate(15deg) scale(1.1);
}

.info-content h4 {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.info-content a, 
.info-content p {
    color: var(--light-text);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.info-content a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.contact-social {
    display: flex;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.contact-social a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, 
        var(--primary-color), 
        var(--accent-light));
    color: var(--white);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.contact-social a::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: all 0.6s ease;
}

.contact-social a:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.contact-social a:hover::before {
    left: 100%;
}

.contact-form {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
}

.contact-form:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.form-group {
    margin-bottom: 30px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-floating {
    position: relative;
}

.form-floating label {
    position: absolute;
    top: 15px;
    left: 20px;
    color: var(--light-text);
    pointer-events: none;
    transition: all 0.3s ease;
    background: white;
    padding: 0 5px;
}

.form-floating input:focus + label,
.form-floating textarea:focus + label,
.form-floating input:not(:placeholder-shown) + label,
.form-floating textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 15px;
    font-size: 0.8rem;
    color: var(--primary-color);
    background: linear-gradient(to bottom, 
        rgba(255,255,255,0.9), 
        rgba(255,255,255,0.8));
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--medium-gray);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 180px;
}

.form-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 35px;
    background: linear-gradient(135deg, 
        var(--primary-color), 
        var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.form-submit-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: all 0.6s ease;
}

.form-submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.form-submit-btn:hover::before {
    left: 100%;
}

.form-submit-btn i {
    transition: transform 0.3s ease;
}

.form-submit-btn:hover i {
    transform: translateX(3px);
}

/* ======================
   Enhanced Footer Section
   ====================== */
.footer {
    background: linear-gradient(135deg, 
        var(--secondary-color), 
        var(--secondary-light));
    color: var(--white);
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, 
        var(--primary-color), 
        var(--accent-light), 
        var(--primary-color));
    animation: rainbow 8s linear infinite;
    background-size: 200% auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col {
    position: relative;
    z-index: 1;
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

.footer-col h3::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--primary-color), 
        var(--accent-light));
    border-radius: 3px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links ul li a::before {
    content: "→";
    color: var(--primary-color);
    font-size: 0.8rem;
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--white);
    transform: translateX(5px);
}

.footer-links ul li a:hover::before {
    opacity: 1;
}

.footer-contact ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact ul li i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-contact ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.footer-contact ul li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.footer-copyright span {
    color: var(--primary-color);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.footer-social a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.1rem;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-social a::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: all 0.6s ease;
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.footer-social a:hover::before {
    left: 100%;
}

.footer-back-to-top {
    position: absolute;
    right: 20px;
    bottom: 20px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.4s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.footer-back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.footer-back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

/* ======================
   Enhanced Responsive Styles
   ====================== */
@media (max-width: 1200px) {
    .section {
        padding: 90px 0;
    }
    
    .contact-content,
    .footer-content {
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .contact-content,
    .footer-content {
        grid-template-columns: 1fr;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .contact-info,
    .contact-form {
        padding: 30px;
    }
    
    .footer-col {
        margin-bottom: 30px;
    }
    
    .footer-col:last-child {
        margin-bottom: 0;
    }
    
    .footer-back-to-top {
        right: 15px;
        bottom: 15px;
    }
}

@media (max-width: 768px) {
    .contact,
    .footer {
        padding: 70px 0;
    }
    
    .contact-info h3,
    .footer-col h3 {
        font-size: 1.5rem;
    }
    
    .info-item {
        flex-direction: column;
        gap: 10px;
    }
    
    .info-item i {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .footer-bottom {
        padding-top: 20px;
    }
    
    .footer-copyright {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .contact,
    .footer {
        padding: 60px 0;
    }
    
    .contact-info,
    .contact-form {
        padding: 25px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px 15px;
    }
    
    .form-submit-btn {
        width: 100%;
        padding: 12px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-col {
        text-align: center;
    }
    
    .footer-col h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-links ul li a {
        justify-content: center;
    }
    
    .footer-contact ul li {
        justify-content: center;
    }
    
    .footer-social {
        flex-wrap: wrap;
    }
    
    .footer-back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .certificate-badge,
    .certificate-card,
    .info-item,
    .contact-social a,
    .form-submit-btn,
    .footer-social a {
        animation: none !important;
        transition: none !important;
    }
}