/* ============================================================
   AADITYA PUNEKAR — PORTFOLIO  |  style.css
   Premium Dark Theme · Glassmorphism · Rich Animations
   ============================================================ */

/* --- ROOT VARIABLES --- */
:root {
    --clr-bg:              #060610;
    --clr-surface:         rgba(255,255,255,0.04);
    --clr-surface-border:  rgba(255,255,255,0.09);
    --clr-surface-hover:   rgba(255,255,255,0.07);

    /* Brand palette */
    --clr-primary:         #6366F1;   /* Indigo */
    --clr-primary-light:   #818CF8;
    --clr-secondary:       #10B981;   /* Emerald */
    --clr-accent:          #F59E0B;   /* Amber */
    --clr-danger:          #EF4444;

    /* Text */
    --clr-text:            #F1F5F9;
    --clr-text-muted:      #94A3B8;
    --clr-text-faint:      #475569;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body:    'Inter', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;

    /* Transitions */
    --ease-fast:   0.2s cubic-bezier(0.4,0,0.2,1);
    --ease-base:   0.35s cubic-bezier(0.4,0,0.2,1);
    --ease-slow:   0.6s cubic-bezier(0.4,0,0.2,1);

    --container-width: 1160px;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    background-color: var(--clr-bg);
    color: var(--clr-text);
    font-family: var(--font-body);
    line-height: 1.65;
    overflow-x: hidden;
}

/* ============================================================
   BACKGROUND
   ============================================================ */
.bg-mesh {
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99,102,241,0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(16,185,129,0.08) 0%, transparent 60%);
}

.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 50;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.45;
    animation: drift 25s infinite alternate ease-in-out;
}
.orb-1 {
    top: 5%; left: 10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(99,102,241,0.28) 0%, transparent 70%);
}
.orb-2 {
    bottom: 0; right: 5%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(16,185,129,0.18) 0%, transparent 70%);
    animation-delay: -8s;
}
.orb-3 {
    top: 50%; left: 45%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(245,158,11,0.12) 0%, transparent 70%);
    animation-delay: -15s;
}

@keyframes drift {
    0%   { transform: translate(0,0) scale(1); }
    50%  { transform: translate(40px,-30px) scale(1.05); }
    100% { transform: translate(-30px,50px) scale(0.97); }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.75rem;
}
.section { padding: 110px 0; }

.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }
.ml-1 { margin-left: 0.4rem; }
.w-full { width: 100%; }

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* Section header */
.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
}
.section-tag {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--clr-primary-light);
    padding: 0.3rem 0.9rem;
    border: 1px solid rgba(99,102,241,0.35);
    border-radius: 50px;
    white-space: nowrap;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    white-space: nowrap;
    margin-bottom: 0;
}
.section-line {
    height: 1px;
    flex: 1;
    background: linear-gradient(to right, rgba(99,102,241,0.3), transparent);
    min-width: 60px;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1,h2,h3,h4,h5,h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5em;
}
a {
    color: var(--clr-text);
    text-decoration: none;
    transition: var(--ease-base);
}

/* ============================================================
   GLASS CARD
   ============================================================ */
.glass-card {
    background: var(--clr-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--clr-surface-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--ease-base);
}
.glass-card:hover {
    background: var(--clr-surface-hover);
    border-color: rgba(99,102,241,0.25);
    box-shadow: 0 0 0 1px rgba(99,102,241,0.15), 0 20px 50px -15px rgba(0,0,0,0.6);
    transform: translateY(-4px);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.75rem 1.6rem;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--ease-base);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), #4F46E5);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}
.btn-primary:hover {
    color: #fff;
    box-shadow: 0 8px 30px rgba(99,102,241,0.5);
}
.btn-secondary {
    background: var(--clr-surface);
    border: 1px solid var(--clr-surface-border);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: var(--clr-surface-hover);
    border-color: var(--clr-text-muted);
}
.btn-ghost {
    background: transparent;
    border: 1px solid var(--clr-surface-border);
    color: var(--clr-text-muted);
}
.btn-ghost:hover {
    color: var(--clr-text);
    border-color: var(--clr-primary-light);
}
.btn-outline {
    background: transparent;
    border: 1px solid var(--clr-surface-border);
}
.btn-outline:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary-light);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 200;
    transition: var(--ease-base);
}
.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(6,6,16,0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--clr-surface-border);
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.5px;
}
.logo .dot { color: var(--clr-primary); }

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}
.nav-link {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--clr-text-muted);
    position: relative;
    padding-bottom: 2px;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0; height: 2px;
    bottom: -4px; left: 0;
    background: var(--clr-primary);
    border-radius: 2px;
    transition: var(--ease-base);
}
.nav-link:hover, .nav-link.active { color: var(--clr-text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-btn {
    padding: 0.45rem 1.2rem;
    border: 1px solid var(--clr-surface-border);
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 600;
    transition: var(--ease-base);
}
.nav-btn:hover {
    background: var(--clr-text);
    color: var(--clr-bg);
    border-color: var(--clr-text);
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 201;
}
.hamburger .bar {
    width: 25px; height: 2px;
    background: var(--clr-text);
    border-radius: 2px;
    transition: var(--ease-base);
}
.hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 4rem;
    align-items: center;
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--clr-secondary);
    border: 1px solid rgba(16,185,129,0.3);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.25rem;
    background: rgba(16,185,129,0.06);
}
.badge-dot {
    width: 8px; height: 8px;
    background: var(--clr-secondary);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%,100% { opacity:1; transform: scale(1); }
    50%      { opacity:0.5; transform: scale(1.4); }
}

.hero-greeting {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--clr-text-muted);
}
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    line-height: 1.08;
    font-weight: 900;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
}

/* Typed text wrapper */
.typed-wrapper {
    position: relative;
    display: inline-block;
}
.cursor-blink {
    color: var(--clr-primary-light);
    animation: blink 0.9s step-end infinite;
    font-weight: 300;
    margin-left: 1px;
}
@keyframes blink { 0%,100% {opacity:1;} 50% {opacity:0;} }

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--clr-text-muted);
    max-width: 560px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}
.hero-cta { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.social-links { display: flex; gap: 1.25rem; }
.social-icon {
    width: 42px; height: 42px;
    border-radius: 50%;
    background: var(--clr-surface);
    border: 1px solid var(--clr-surface-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: var(--clr-text-muted);
    transition: var(--ease-base);
}
.social-icon:hover {
    color: var(--clr-text);
    border-color: var(--clr-primary);
    background: rgba(99,102,241,0.12);
    transform: translateY(-3px);
}

/* Hero code block */
.hero-code-block {
    background: rgba(8,8,20,0.9);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 25px 60px -15px rgba(0,0,0,0.7), 0 0 0 1px rgba(99,102,241,0.1);
    animation: float-card 6s ease-in-out infinite;
}
@keyframes float-card {
    0%,100% { transform: translateY(0); }
    50%      { transform: translateY(-12px); }
}
.code-header {
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.dot-red    { width:11px; height:11px; border-radius:50%; background:#FF5F56; }
.dot-yellow { width:11px; height:11px; border-radius:50%; background:#FFBD2E; }
.dot-green  { width:11px; height:11px; border-radius:50%; background:#27C93F; }
.code-filename {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--clr-text-faint);
}
.code-content {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
    padding: 1.5rem;
    white-space: pre;
    overflow: hidden;
}
.code-comment { color: #546E7A; }
.code-keyword { color: #C792EA; }
.code-class   { color: #FFCB6B; }
.code-fn      { color: #82AAFF; }
.code-str     { color: #C3E88D; }
.code-num     { color: #F78C6C; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
    background: rgba(255,255,255,0.025);
    border-top: 1px solid var(--clr-surface-border);
    border-bottom: 1px solid var(--clr-surface-border);
    padding: 2rem 0;
}
.stats-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}
.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    min-width: 140px;
    padding: 0.5rem 1rem;
}
.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.stat-suffix {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--clr-primary-light);
    margin-left: 2px;
    align-self: flex-start;
    margin-top: 5px;
}
.stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--clr-text-muted);
    margin-top: 0.3rem;
}
.stat-divider {
    width: 1px;
    height: 50px;
    background: var(--clr-surface-border);
    flex-shrink: 0;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 8rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.6;
    transition: var(--ease-base);
}
.scroll-indicator:hover { opacity: 1; }
.mouse {
    width: 24px; height: 38px;
    border: 2px solid var(--clr-text-muted);
    border-radius: 20px;
    position: relative;
    margin: 0 auto;
}
.wheel {
    width: 4px; height: 8px;
    background: var(--clr-primary-light);
    border-radius: 2px;
    position: absolute;
    top: 6px; left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s infinite;
}
@keyframes scroll-wheel {
    0%   { top:6px; opacity:1; }
    50%  { top:14px; opacity:0; }
    100% { top:6px; opacity:0; }
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 5rem;
    align-items: center;
}
.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    color: var(--clr-text);
}
.about-text p {
    color: var(--clr-text-muted);
    margin-bottom: 1.2rem;
    font-size: 0.97rem;
}
.about-highlight-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}
.highlight-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--clr-surface);
    border: 1px solid var(--clr-surface-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--ease-base);
}
.highlight-card:hover {
    border-color: rgba(99,102,241,0.3);
    background: var(--clr-surface-hover);
    transform: translateY(-2px);
}
.highlight-card i { font-size: 1.1rem; }

/* Avatar Image Wrapper */
.image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/5;
    background: linear-gradient(160deg, #0f0f1e, #060610);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(99,102,241,0.2);
    overflow: visible;
}
.image-wrapper::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--radius-lg) + 2px);
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    z-index: -1;
    opacity: 0.4;
}
.avatar-placeholder i {
    font-size: 7rem;
    background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.experience-badge {
    position: absolute;
    bottom: -24px; right: -24px;
    background: rgba(6,6,16,0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--clr-surface-border);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.experience-badge .years {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--clr-secondary);
    line-height: 1;
}
.experience-badge .text {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--clr-text-muted);
}
.location-badge {
    position: absolute;
    top: -20px; left: -20px;
    background: rgba(6,6,16,0.95);
    border: 1px solid var(--clr-surface-border);
    padding: 0.6rem 1rem;
    border-radius: 50px;
    font-size: 0.78rem;
    color: var(--clr-text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.location-badge i { color: var(--clr-danger); }

/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}
.skill-group { padding: 1.75rem; }
.skill-group-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--clr-text);
}
.skill-group-title i { color: var(--clr-primary-light); }

.skill-tags { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.stag {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--clr-surface-border);
    color: var(--clr-text-muted);
    transition: var(--ease-base);
    cursor: default;
}
.stag:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary-light);
    background: rgba(99,102,241,0.1);
}
.stag.python { border-color: rgba(55,118,171,0.5); color: #79C0FF; }
.stag.sql    { border-color: rgba(68,121,161,0.5); color: #79C0FF; }
.stag.ai     { border-color: rgba(99,102,241,0.4); color: var(--clr-primary-light); }
.stag.cloud  { border-color: rgba(16,185,129,0.35); color: #6EE7B7; }

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
}
.timeline::before {
    content: '';
    position: absolute;
    top: 0; left: 20px;
    height: 100%; width: 2px;
    background: linear-gradient(to bottom, var(--clr-primary), var(--clr-secondary), transparent);
    opacity: 0.35;
}
.timeline-item {
    position: relative;
    padding-left: 65px;
    margin-bottom: 2.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: 11px; top: 4px;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--clr-primary);
    box-shadow: 0 0 0 4px rgba(99,102,241,0.2), 0 0 12px rgba(99,102,241,0.5);
    z-index: 2;
}
.edu-dot {
    background: var(--clr-secondary);
    box-shadow: 0 0 0 4px rgba(16,185,129,0.2), 0 0 12px rgba(16,185,129,0.5);
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.9rem;
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--clr-text-muted);
    font-weight: 600;
    margin-bottom: 0.85rem;
    font-family: var(--font-mono);
}
.timeline-title {
    font-size: 1.25rem;
    margin-bottom: 0.2rem;
}
.timeline-company {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--clr-text-muted);
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.timeline-content p {
    color: var(--clr-text-muted);
    font-size: 0.93rem;
    line-height: 1.7;
}
.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1rem;
}
.timeline-tags span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--clr-primary-light);
    background: rgba(99,102,241,0.1);
    border: 1px solid rgba(99,102,241,0.25);
    padding: 0.18rem 0.65rem;
    border-radius: 50px;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.filter-tabs {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}
.filter-btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.45rem 1.1rem;
    border-radius: 50px;
    border: 1px solid var(--clr-surface-border);
    background: var(--clr-surface);
    color: var(--clr-text-muted);
    cursor: pointer;
    transition: var(--ease-base);
}
.filter-btn:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary-light);
}
.filter-btn.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(99,102,241,0.35);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 1.75rem;
}

/* Project Card */
.project-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform var(--ease-base), box-shadow var(--ease-base), border-color var(--ease-base);
    animation-delay: var(--delay, 0ms);
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 0 1px rgba(99,102,241,0.2), 0 30px 60px -20px rgba(0,0,0,0.7);
    border-color: rgba(99,102,241,0.3);
}

/* Project image area */
.project-img-wrapper {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}
.project-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s ease;
    position: relative;
}
.project-card:hover .project-img { transform: scale(1.08); }

.proj-icon-bg {
    width: 72px; height: 72px;
    border-radius: 18px;
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: rgba(255,255,255,0.7);
    transition: var(--ease-base);
}
.project-card:hover .proj-icon-bg {
    background: rgba(255,255,255,0.12);
    transform: scale(1.1) rotate(-3deg);
}

/* Project image backgrounds */
.bg-retail   { background: linear-gradient(135deg, #0f1729, #1e3a5f); }
.bg-copilot  { background: linear-gradient(135deg, #0e1f0e, #1a4a2e); }
.bg-sentinel { background: linear-gradient(135deg, #1a0e28, #3b1f5e); }
.bg-youtube  { background: linear-gradient(135deg, #1c0a06, #4a1500); }
.bg-logistics{ background: linear-gradient(135deg, #111827, #1f2937); }
.bg-genai    { background: linear-gradient(135deg, #0c1a1a, #0d3030); }
.bg-excel    { background: linear-gradient(135deg, #0a1a0a, #1e3a1e); }
.bg-malware  { background: linear-gradient(135deg, #1a0812, #3d0c2a); }

.project-category-badge {
    position: absolute;
    top: 0.75rem; left: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--clr-primary-light);
    background: rgba(6,6,16,0.85);
    border: 1px solid rgba(99,102,241,0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    backdrop-filter: blur(8px);
}

.project-info {
    padding: 1.5rem 1.75rem 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    transition: var(--ease-base);
}
.project-card:hover .project-title { color: var(--clr-primary-light); }

.project-desc {
    color: var(--clr-text-muted);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    flex: 1;
}
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}
.project-tech span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--clr-text-muted);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--clr-surface-border);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}
.project-links {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}
.proj-link-demo, .proj-link-github {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.84rem;
    font-weight: 600;
    padding: 0.45rem 1rem;
    border-radius: 50px;
    transition: var(--ease-base);
}
.proj-link-demo {
    background: var(--clr-primary);
    color: #fff;
    box-shadow: 0 3px 12px rgba(99,102,241,0.3);
}
.proj-link-demo:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.45);
}
.proj-link-github {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--clr-surface-border);
    color: var(--clr-text-muted);
}
.proj-link-github:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary-light);
    transform: translateY(-2px);
}

/* hidden project card */
.project-card.hidden {
    display: none;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 3.5rem 4rem;
}
.contact-info h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    line-height: 1.25;
    margin-bottom: 1rem;
}
.contact-info p {
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    line-height: 1.75;
}
.contact-methods { display: flex; flex-direction: column; gap: 1.25rem; }
.method { display: flex; align-items: center; gap: 1rem; }
.icon-box {
    width: 48px; height: 48px;
    flex-shrink: 0;
    background: rgba(99,102,241,0.1);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--clr-primary-light);
}
.method h5 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--clr-text-muted);
    margin-bottom: 0.15rem;
}
.method a, .method span {
    font-weight: 500;
    font-size: 0.92rem;
    transition: var(--ease-fast);
}
.method a:hover { color: var(--clr-primary-light); }

/* Form */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--clr-text-muted);
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--clr-surface-border);
    border-radius: var(--radius-sm);
    color: var(--clr-text);
    font-family: var(--font-body);
    font-size: 0.92rem;
    transition: var(--ease-base);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    background: rgba(0,0,0,0.4);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--clr-surface-border);
    text-align: center;
}
.footer-content { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}
.footer-logo .dot { color: var(--clr-primary); }
.copyright, .built-with { color: var(--clr-text-muted); font-size: 0.85rem; }
.built-with { opacity: 0.6; font-size: 0.75rem; }

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-fade-right {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-fade-left {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-fade-up.active,
.reveal-fade-right.active,
.reveal-fade-left.active {
    opacity: 1;
    transform: translate(0,0);
}

/* Hero delay classes */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.35s; }
.delay-4 { transition-delay: 0.5s; }
.delay-5 { transition-delay: 0.65s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; }
    .hero-code-block { display: none; }
    .skills-columns { grid-template-columns: 1fr 1fr; }
    .about-content { grid-template-columns: 1fr; }
    .about-image { max-width: 380px; }
}

@media (max-width: 768px) {
    .section { padding: 70px 0; }

    .hamburger { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0; right: 0;
        width: 100%; height: 100vh;
        background: rgba(6,6,16,0.98);
        backdrop-filter: blur(20px);
        justify-content: center;
        align-items: center;
        gap: 2.5rem;
        z-index: 200;
    }
    .nav-links.active { display: flex; }
    .nav-link { font-size: 1.3rem; }
    .nav-btn { font-size: 1.1rem; padding: 0.7rem 2rem; }

    .hero-title { font-size: clamp(2.2rem, 8vw, 3.5rem); }
    .stats-container { gap: 0; }
    .stat-item { min-width: 100px; }
    .stat-divider { height: 40px; }

    .skills-columns { grid-template-columns: 1fr; }
    .contact-card {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem;
    }
    .projects-grid { grid-template-columns: 1fr; }
    .section-header { flex-wrap: wrap; }
    .section-line { display: none; }
}

@media (max-width: 480px) {
    .hero-cta { flex-direction: column; }
    .btn { justify-content: center; }
    .stat-number { font-size: 1.8rem; }
    .stat-label { font-size: 0.65rem; }
    .stat-divider { display: none; }
    .stats-container { gap: 1rem; justify-content: space-around; }
    .about-highlight-grid { grid-template-columns: 1fr; }
}