/* ============================================
   VARIABLES & RESET
   ============================================ */
:root {
    --primary: #38bdf8;
    --primary-dark: #0ea5e9;
    --accent: #6366f1;
    --accent-2: #a78bfa;
    --dark-bg: #080d19;
    --dark-surface: #0e1628;
    --dark-card: #111927;
    --dark-card-hover: #162236;
    --dark-border: rgba(255,255,255,0.07);
    --dark-border-hover: rgba(56,189,248,0.3);
    --text-primary: #f0f6ff;
    --text-secondary: #8fa3bf;
    --text-muted: #4e6780;

    --light-bg: #f4f7fb;
    --light-surface: #ffffff;
    --light-card: #ffffff;
    --light-card-hover: #f0f6ff;
    --light-border: rgba(0,0,0,0.08);
    --light-border-hover: rgba(14,165,233,0.4);
    --light-text-primary: #0d1b2a;
    --light-text-secondary: #3d5a72;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
}

body.light-mode {
    background: var(--light-bg);
    color: var(--light-text-primary);
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
svg { display: inline-block; vertical-align: middle; }
p { margin-bottom: 0; }

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 1rem;
}
.section-label::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.section-label.centered { display: flex; justify-content: center; }

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 3.5rem;
    color: var(--text-primary);
}
body.light-mode .section-title { color: var(--light-text-primary); }

/* ============================================
   HEADER / NAV
   ============================================ */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(8,13,25,0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--dark-border);
    transition: background var(--transition), border-color var(--transition);
}
body.light-mode header {
    background: rgba(244,247,251,0.9);
    border-bottom-color: rgba(0,0,0,0.07);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1320px;
    margin: 0 auto;
    padding: 1.1rem 2rem;
}

.logo-section { display: flex; flex-direction: column; gap: 0.15rem; }
.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}
.tagline {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}
body.light-mode .tagline { color: var(--light-text-secondary); }

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.nav-links a {
    display: block;
    padding: 0.45rem 0.9rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}
body.light-mode .nav-links a { color: var(--light-text-secondary); }
body.light-mode .nav-links a:hover { color: var(--light-text-primary); background: rgba(0,0,0,0.05); }

.nav-btn {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent)) !important;
    color: #fff !important;
    padding: 0.5rem 1.2rem !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    transition: opacity var(--transition), transform var(--transition) !important;
}
.nav-btn:hover { opacity: 0.9; transform: translateY(-1px); background: none !important; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}
body.light-mode .hamburger span { background: var(--light-text-primary); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem 4rem;
    overflow: hidden;
    text-align: center;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(56,189,248,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56,189,248,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}
body.light-mode .hero-bg-grid {
    background-image:
        linear-gradient(rgba(14,165,233,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14,165,233,0.06) 1px, transparent 1px);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
}
.hero-glow-1 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, rgba(56,189,248,0.12) 0%, transparent 70%);
    top: -100px; right: -80px;
}
.hero-glow-2 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(99,102,241,0.1) 0%, transparent 70%);
    bottom: -80px; left: -60px;
}

.hero-content { position: relative; z-index: 2; max-width: 820px; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(56,189,248,0.08);
    border: 1px solid rgba(56,189,248,0.2);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 2rem;
    animation: fadeInDown 0.7s ease both;
}
body.light-mode .hero-badge {
    background: rgba(14,165,233,0.08);
    border-color: rgba(14,165,233,0.2);
}
.badge-dot {
    width: 7px; height: 7px;
    background: #22d3a5;
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(34,211,165,0.2);
    animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 3px rgba(34,211,165,0.2); } 50% { box-shadow: 0 0 0 6px rgba(34,211,165,0.1); } }

.hero-title {
    font-size: clamp(3rem, 9vw, 6rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s 0.1s ease both;
    color: var(--text-primary);
}
body.light-mode .hero-title { color: var(--light-text-primary); }

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s 0.2s ease both;
    letter-spacing: 0.02em;
}
body.light-mode .hero-subtitle { color: var(--light-text-secondary); }

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s 0.3s ease both;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.cta-button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(56,189,248,0.35); opacity: 0.95; color: #fff; }

.cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.cta-outline:hover { border-color: var(--primary); background: rgba(56,189,248,0.06); transform: translateY(-2px); color: var(--text-primary); }
body.light-mode .cta-outline { color: var(--light-text-primary); border-color: rgba(0,0,0,0.12); }
body.light-mode .cta-outline:hover { border-color: var(--primary-dark); background: rgba(14,165,233,0.06); color: var(--light-text-primary); }

.btn-icon { width: 16px; height: 16px; }

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.scroll-indicator {
    width: 24px; height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
    margin: 0 auto;
}
.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scrollDot 1.8s infinite;
}
@keyframes scrollDot { 0%,100% { top: 5px; opacity: 1; } 80% { top: 20px; opacity: 0; } }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================
   SECTIONS
   ============================================ */
section { padding: 7rem 2rem; }
.section-container { max-width: 1200px; margin: 0 auto; }

/* ============================================
   ABOUT
   ============================================ */
#about { background: var(--dark-surface); }
body.light-mode #about { background: var(--light-surface); }

.about-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 5rem;
    align-items: center;
}

.photo-frame {
    position: relative;
    display: inline-block;
}
.profile-photo {
    width: 320px;
    height: 380px;
    object-fit: cover;
    object-position: top;
    border-radius: var(--radius-xl);
    box-shadow: 0 30px 60px rgba(0,0,0,0.4);
    position: relative;
    z-index: 1;
    transition: transform var(--transition);
}
.profile-photo:hover { transform: scale(1.02); }
.photo-accent {
    position: absolute;
    top: 20px; left: 20px;
    right: -16px; bottom: -16px;
    border: 2px solid rgba(56,189,248,0.25);
    border-radius: var(--radius-xl);
    z-index: 0;
    pointer-events: none;
}
body.light-mode .photo-accent { border-color: rgba(14,165,233,0.2); }

.about-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.2;
}
body.light-mode .about-content h2 { color: var(--light-text-primary); }
.about-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
    line-height: 1.8;
}
body.light-mode .about-content p { color: var(--light-text-secondary); }

.about-highlights { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 2rem; }
.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), background var(--transition);
}
.highlight-item:hover { border-color: var(--dark-border-hover); background: var(--dark-card-hover); }
body.light-mode .highlight-item { background: var(--light-bg); border-color: var(--light-border); }
body.light-mode .highlight-item:hover { border-color: var(--light-border-hover); background: rgba(14,165,233,0.04); }

.highlight-icon-wrap {
    width: 40px; height: 40px;
    min-width: 40px;
    background: rgba(56,189,248,0.1);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
}
.highlight-icon { width: 18px; height: 18px; }
.highlight-item strong {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}
.highlight-item span {
    font-size: 0.82rem;
    color: var(--text-muted);
}
body.light-mode .highlight-item strong { color: var(--light-text-primary); }
body.light-mode .highlight-item span { color: var(--light-text-secondary); }

/* ============================================
   SKILLS
   ============================================ */
#skills { background: var(--dark-bg); }
body.light-mode #skills { background: var(--light-bg); }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.skill-category {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color var(--transition), transform var(--transition);
}
.skill-category:hover { border-color: var(--dark-border-hover); transform: translateY(-3px); }
body.light-mode .skill-category { background: var(--light-surface); border-color: var(--light-border); }
body.light-mode .skill-category:hover { border-color: var(--light-border-hover); }

.skill-category h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--dark-border);
}
body.light-mode .skill-category h3 { color: var(--light-text-primary); border-bottom-color: var(--light-border); }

.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-tag {
    padding: 0.35rem 0.85rem;
    font-size: 0.82rem;
    font-weight: 500;
    background: rgba(56,189,248,0.07);
    color: var(--primary);
    border: 1px solid rgba(56,189,248,0.15);
    border-radius: 100px;
    transition: background var(--transition), border-color var(--transition);
}
.skill-tag:hover { background: rgba(56,189,248,0.14); border-color: rgba(56,189,248,0.3); }
body.light-mode .skill-tag {
    background: rgba(14,165,233,0.07);
    color: var(--primary-dark);
    border-color: rgba(14,165,233,0.18);
}

/* ============================================
   PROJECTS
   ============================================ */
#projects { background: var(--dark-surface); }
body.light-mode #projects { background: var(--light-surface); }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
    border-color: var(--dark-border-hover);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
body.light-mode .project-card { background: var(--light-card); border-color: var(--light-border); }
body.light-mode .project-card:hover { border-color: var(--light-border-hover); box-shadow: 0 10px 30px rgba(14,165,233,0.1); }

.project-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(14,165,233,0.05) 0%, rgba(99,102,241,0.05) 100%);
    border-color: rgba(56,189,248,0.18);
}
body.light-mode .project-card.featured {
    background: linear-gradient(135deg, rgba(14,165,233,0.04) 0%, rgba(99,102,241,0.04) 100%);
    border-color: rgba(14,165,233,0.2);
}

.project-card-inner { padding: 1.75rem; }
.project-card.featured .project-card-inner {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    grid-template-rows: auto auto 1fr auto;
    gap: 1.25rem 2rem;
    align-items: start;
}
.project-card.featured .project-header { grid-column: 1; grid-row: 1; align-self: start; }
.project-card.featured .project-title { grid-column: 1; grid-row: 2; align-self: start; }
.project-card.featured .project-screenshot-wrap { grid-column: 1; grid-row: 3 / 5; align-self: start; }
.project-card.featured .project-description { grid-column: 2; grid-row: 1 / 3; align-self: start; }
.project-card.featured .project-tech { grid-column: 2; grid-row: 3; align-self: start; }
.project-card.featured .project-links { grid-column: 2; grid-row: 4; align-self: end; }

.project-screenshot-wrap {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
    line-height: 0;
    margin-top: 0.5rem;
}
body.light-mode .project-screenshot-wrap { border-color: var(--light-border); }
.project-screenshot {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.project-card:hover .project-screenshot { transform: scale(1.02); }

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

.project-icon-wrap {
    width: 44px; height: 44px;
    background: rgba(56,189,248,0.1);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
}
.project-icon { width: 22px; height: 22px; }

.featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(135deg, rgba(56,189,248,0.15), rgba(99,102,241,0.15));
    color: var(--primary);
    border: 1px solid rgba(56,189,248,0.25);
    padding: 0.3rem 0.7rem;
    border-radius: 100px;
}
.featured-badge svg { width: 11px; height: 11px; }

.project-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}
body.light-mode .project-title { color: var(--light-text-primary); }
.project-card.featured .project-title { font-size: 1.5rem; }

.project-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}
body.light-mode .project-description { color: var(--light-text-secondary); }

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}
.project-tech span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    background: var(--dark-bg);
    color: var(--text-secondary);
    border: 1px solid var(--dark-border);
    border-radius: 100px;
}
body.light-mode .project-tech span {
    background: var(--light-bg);
    color: var(--light-text-secondary);
    border-color: rgba(0,0,0,0.08);
}

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

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.link-icon { width: 14px; height: 14px; }

.project-link.primary {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    color: #fff;
}
.project-link.primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(56,189,248,0.3); color: #fff; }

.project-link.secondary {
    background: var(--dark-bg);
    color: var(--text-secondary);
    border: 1px solid var(--dark-border);
}
.project-link.secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
body.light-mode .project-link.secondary {
    background: var(--light-bg);
    color: var(--light-text-secondary);
    border-color: var(--light-border);
}
body.light-mode .project-link.secondary:hover { border-color: var(--primary-dark); color: var(--primary-dark); }

/* ============================================
   CONTACT
   ============================================ */
#contact { background: var(--dark-bg); }
body.light-mode #contact { background: var(--light-bg); }

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
    align-items: flex-start;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}
body.light-mode .contact-info h3 { color: var(--light-text-primary); }

.contact-details { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.25rem;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: border-color var(--transition), background var(--transition);
}
.contact-item:not(.no-link):hover { border-color: var(--dark-border-hover); background: var(--dark-card-hover); }
body.light-mode .contact-item { background: var(--light-surface); border-color: var(--light-border); color: var(--light-text-secondary); }
body.light-mode .contact-item:not(.no-link):hover { border-color: var(--light-border-hover); }

.contact-icon-wrap {
    width: 40px; height: 40px; min-width: 40px;
    background: rgba(56,189,248,0.1);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
}
.contact-icon { width: 18px; height: 18px; }

.contact-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.15rem;
}
body.light-mode .contact-label { color: var(--light-text-secondary); }
.contact-item span { font-size: 0.92rem; color: var(--text-primary); }
body.light-mode .contact-item span { color: var(--light-text-primary); }

.socials { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.1rem;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.social-link:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.social-icon { width: 17px; height: 17px; }
body.light-mode .social-link { background: var(--light-surface); border-color: var(--light-border); color: var(--light-text-secondary); }
body.light-mode .social-link:hover { border-color: var(--primary-dark); color: var(--primary-dark); }

/* Contact Form */
.contact-form {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
body.light-mode .contact-form { background: var(--light-surface); border-color: var(--light-border); }

.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
}
body.light-mode .form-group label { color: var(--light-text-secondary); }

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-body);
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
    resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(56,189,248,0.03);
    box-shadow: 0 0 0 3px rgba(56,189,248,0.1);
}
body.light-mode .form-group input,
body.light-mode .form-group textarea {
    background: var(--light-bg);
    border-color: var(--light-border);
    color: var(--light-text-primary);
}
body.light-mode .form-group input:focus,
body.light-mode .form-group textarea:focus {
    border-color: var(--primary-dark);
    background: rgba(14,165,233,0.03);
    box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.95rem;
    font-family: var(--font-body);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.submit-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(56,189,248,0.3); }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.form-note { font-size: 0.78rem; color: var(--text-muted); text-align: center; }

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: var(--dark-surface);
    border-top: 1px solid var(--dark-border);
    padding: 2.5rem 2rem;
}
body.light-mode footer { background: var(--light-surface); border-top-color: var(--light-border); }

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
footer p:last-child { font-size: 0.85rem; color: var(--text-muted); }
body.light-mode footer p:last-child { color: var(--light-text-secondary); }

/* ============================================
   THEME TOGGLE
   ============================================ */
#theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
    background: var(--dark-card);
    color: var(--text-secondary);
    border: 1px solid var(--dark-border);
    border-radius: 50%;
    width: 52px; height: 52px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.theme-icon { width: 20px; height: 20px; }
#theme-toggle:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
    transform: scale(1.08) rotate(15deg);
    box-shadow: 0 8px 24px rgba(56,189,248,0.4);
}
body.light-mode #theme-toggle { background: var(--light-surface); color: var(--accent); border-color: var(--light-border); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
body.light-mode #theme-toggle:hover { background: var(--accent); border-color: var(--accent); color: white; }

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal-ready {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-ready.revealed { opacity: 1; transform: translateY(0); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1100px) {
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .project-card.featured { grid-column: 1 / -1; }
    .project-card.featured .project-card-inner { grid-template-columns: 1fr; }
    .project-card.featured .project-title,
    .project-card.featured .project-description,
    .project-card.featured .project-tech,
    .project-card.featured .project-links,
    .project-card.featured .project-header { grid-column: auto; grid-row: auto; }
}

@media (max-width: 900px) {
    .about-container, .contact-wrapper { grid-template-columns: 1fr; gap: 3rem; }
    .skills-grid { grid-template-columns: 1fr; }
    .about-image { text-align: center; }
    .profile-photo { width: 260px; height: 310px; margin: 0 auto; }
}

@media (max-width: 768px) {
    section { padding: 5rem 1.5rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .hamburger { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        background: var(--dark-surface);
        border-bottom: 1px solid var(--dark-border);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.5rem;
    }
    body.light-mode .nav-links { background: var(--light-surface); border-bottom-color: var(--light-border); }
    .nav-links.open { display: flex; }
    header { position: sticky; }
    .navbar { position: relative; }
    .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
    .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; align-items: center; }
    .cta-button, .cta-outline { width: 100%; justify-content: center; max-width: 280px; }
    .socials { flex-direction: column; }
    .social-link { justify-content: center; }
}

/* ── PROJECT SCREENSHOT ── */
.project-screenshot-wrap {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    margin: 1rem 0;
    border: 1px solid var(--dark-border);
    line-height: 0;
}
body.light-mode .project-screenshot-wrap {
    border-color: var(--light-border);
}
.project-screenshot {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.project-card:hover .project-screenshot {
    transform: scale(1.02);
}