/* ============================================================
   MARUF.DEV — PORTFOLIO STYLESHEET
   Modern dark theme with glassmorphism & gradient accents
   ============================================================ */

/* ---------- Google Fonts are loaded via <link> in HTML ---------- */

/* ===== CSS VARIABLES ===== */
:root {
    --bg-primary:        #0a0a0f;
    --bg-secondary:      #0f1117;
    --bg-card:           rgba(15, 18, 30, 0.6);
    --accent:            #10b981;
    --accent-secondary:  #f59e0b;
    --accent-glow:       rgba(16, 185, 129, 0.25);
    --accent-glow-pink:  rgba(245, 158, 11, 0.2);
    --text-primary:      #f0f0f5;
    --text-secondary:    #8892a8;
    --border:            rgba(255, 255, 255, 0.06);
    --glass-bg:          rgba(255, 255, 255, 0.03);
    --glass-border:      rgba(255, 255, 255, 0.08);
    --nav-height:        70px;
    --radius-sm:         10px;
    --radius-md:         16px;
    --radius-lg:         24px;
    --shadow-card:       0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow:       0 0 40px var(--accent-glow);
    --transition:        all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

ul { list-style: none; }

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

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-full { width: 100%; justify-content: center; }

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 0 var(--glass-border), 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span { color: var(--accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--nav-height);
}

/* Animated background blobs */
.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: blobFloat 12s ease-in-out infinite alternate;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -150px;
    right: -100px;
    animation-duration: 10s;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: -100px;
    left: -80px;
    animation-duration: 14s;
    animation-delay: -4s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 40%;
    left: 40%;
    animation-duration: 16s;
    animation-delay: -8s;
    opacity: 0.15;
}

@keyframes blobFloat {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 20px) scale(1.08); }
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    width: 100%;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-text { flex: 1; }

.hero-greeting {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.hero-name {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 60%, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-role {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.typing-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
    -webkit-text-fill-color: var(--accent);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.hero-socials {
    display: flex;
    gap: 16px;
}

.hero-socials a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.hero-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
    transform: translateY(-3px);
}

/* Profile Image */
.hero-image {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-wrapper {
    position: relative;
    width: 360px;
    height: 360px;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 2;
    border: 3px solid var(--glass-border);
}

.image-ring {
    position: absolute;
    inset: -12px;
    border-radius: calc(var(--radius-lg) + 8px);
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary), transparent, transparent);
    z-index: 1;
    animation: ringRotate 6s linear infinite;
}

@keyframes ringRotate {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Scroll down arrow */
.scroll-down {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    font-size: 1.1rem;
    animation: bounceDown 2s ease-in-out infinite;
    z-index: 1;
}

@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about { background: var(--bg-primary); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 1.9;
}

.about-text .btn { margin-top: 12px; }

/* Stats grid */
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-glow), transparent);
    opacity: 0;
    transition: opacity 0.35s;
}

.stat-card:hover::before { opacity: 1; }

.stat-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: var(--shadow-card);
}

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-secondary);
}

.stat-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 8px;
    font-weight: 500;
}

/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills { background: var(--bg-secondary); }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.skill-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.skill-card:hover::after { transform: scaleX(1); }

.skill-card:hover {
    border-color: rgba(16, 185, 129, 0.4);
    transform: translateY(-8px);
    box-shadow: var(--shadow-card), 0 0 30px var(--accent-glow);
    background: rgba(15, 18, 30, 0.9);
}

.skill-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.5rem;
    color: var(--accent);
    border: 1px solid var(--glass-border);
}

.skill-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.skill-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.skill-bar {
    background: var(--bg-secondary);
    border-radius: 50px;
    height: 6px;
    overflow: hidden;
    margin-bottom: 6px;
}

.skill-fill {
    height: 100%;
    border-radius: 50px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    width: 0;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-percent {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
    text-align: right;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.projects { background: var(--bg-primary); }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.project-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card), 0 0 40px var(--accent-glow);
    border-color: rgba(16, 185, 129, 0.4);
}

.project-inner { position: relative; }

.project-front {
    padding: 36px 28px;
    transition: var(--transition);
}

.project-front:hover { opacity: 0; }

.project-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent);
    border: 1px solid var(--glass-border);
    margin-bottom: 20px;
}

.project-front h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.project-front p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

/* Hover overlay */
.project-overlay {
    position: absolute;
    inset: 0;
    padding: 36px 28px;
    background: linear-gradient(135deg,
        rgba(16, 185, 129, 0.92),
        rgba(245, 158, 11, 0.85)
    );
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: var(--radius-lg);
}

.project-card:hover .project-overlay { opacity: 1; }
.project-card:hover .project-front { opacity: 0; }

.project-overlay h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}

.project-overlay p {
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.9rem;
    line-height: 1.75;
    margin-bottom: 24px;
}

.project-links {
    display: flex;
    gap: 16px;
}

.project-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.project-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #fff;
}

/* ============================================================
   TIMELINE SECTION
   ============================================================ */
.timeline { background: var(--bg-secondary); }

.timeline-wrapper {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
    padding-left: 40px;
}

/* Vertical line */
.timeline-wrapper::before {
    content: '';
    position: absolute;
    left: 16px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(
        to bottom,
        var(--accent),
        var(--accent-secondary),
        transparent
    );
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

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

.timeline-dot {
    position: absolute;
    left: -32px;
    top: 22px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    box-shadow: 0 0 12px var(--accent-glow);
    border: 2px solid var(--bg-secondary);
    z-index: 1;
}

.timeline-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.timeline-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-secondary));
    border-radius: 4px 0 0 4px;
    transform: scaleY(0);
    transition: transform 0.4s ease;
    transform-origin: top;
}

.timeline-item:hover .timeline-card::before { transform: scaleY(1); }

.timeline-card:hover {
    border-color: rgba(16, 185, 129, 0.35);
    transform: translateX(8px);
    box-shadow: var(--shadow-card);
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.timeline-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.timeline-card h4 {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-secondary);
    margin-bottom: 12px;
}

.timeline-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ============================================================
   ACTIVITIES SECTION
   ============================================================ */
.activities { background: var(--bg-primary); }

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.activity-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.activity-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.activity-card:hover::before { transform: scaleX(1); }

.activity-card:hover {
    border-color: rgba(16, 185, 129, 0.35);
    transform: translateY(-8px);
    box-shadow: var(--shadow-card), 0 0 30px var(--accent-glow);
}

.activity-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    border: 1px solid var(--glass-border);
    margin-bottom: 20px;
}

.activity-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.activity-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 20px;
}

.activity-tag {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow-pink));
    color: var(--accent);
    border: 1px solid rgba(16, 185, 129, 0.25);
    display: inline-block;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact { background: var(--bg-secondary); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-info > p {
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-item i {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1rem;
    flex-shrink: 0;
    border: 1px solid var(--glass-border);
}

.contact-socials {
    display: flex;
    gap: 14px;
}

.contact-socials a {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
}

.contact-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
    resize: none;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(16, 185, 129, 0.05);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(160, 160, 176, 0.5); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 64px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand .logo {
    font-size: 1.4rem;
    display: inline-block;
    margin-bottom: 14px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================================
   BACK TO TOP BUTTON
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--accent-glow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px var(--accent-glow);
}

/* ============================================================
   RESPONSIVE — TABLET (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .about-grid    { gap: 40px; }
    .contact-grid  { grid-template-columns: 1fr; gap: 40px; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {

    /* Nav mobile */
    .hamburger { display: flex; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: rgba(10, 11, 18, 0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        align-items: flex-start;
        padding: calc(var(--nav-height) + 24px) 32px 32px;
        gap: 6px;
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        border-left: 1px solid var(--glass-border);
        z-index: 1000;
    }

    .nav-links.open { right: 0; }

    .nav-link {
        font-size: 1rem;
        padding: 10px 16px;
        width: 100%;
    }

    /* Hero mobile */
    .hero-container {
        flex-direction: column-reverse;
        text-align: center;
        gap: 40px;
        padding-top: 20px;
    }

    .image-wrapper {
        width: 240px;
        height: 240px;
    }

    .hero-cta     { justify-content: center; }
    .hero-socials { justify-content: center; }
    .hero-desc    { margin: 0 auto 36px; }

    /* About mobile */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    /* Skills mobile */
    .skills-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Timeline mobile */
    .timeline-wrapper {
        padding-left: 28px;
    }
    .timeline-wrapper::before { left: 8px; }
    .timeline-dot { left: -24px; }

    /* Footer mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {

    .section { padding: 70px 0; }

    .skills-grid  { grid-template-columns: 1fr; }
    .about-stats  { grid-template-columns: 1fr 1fr; }
    .hero-cta     { flex-direction: column; align-items: center; }

    .contact-form { padding: 28px 20px; }

    .back-to-top {
        bottom: 20px;
        right: 20px;
    }

    .section-title { font-size: 1.8rem; }
}