/* ===== Material Design 3 Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&family=Roboto+Mono:wght@400;500&family=Yomogi&display=swap');

:root {
    /* MD3 Color Roles — Dark Scheme */
    --md-primary:        #A8C7FA;   /* MD3 primary */
    --md-on-primary:     #002E6C;
    --md-primary-container: #1A4C98;
    --md-on-primary-container: #D6E3FF;

    --md-secondary:      #C2C7D0;
    --md-on-secondary:   #2C3138;
    --md-secondary-container: #424851;
    --md-on-secondary-container: #DEE3EC;

    --md-tertiary:       #D6BEE4;
    --md-on-tertiary:    #3B2951;
    --md-tertiary-container: #523F69;
    --md-on-tertiary-container: #F2DAFF;

    --md-error:          #FFB4AB;
    --md-surface:        #111318;
    --md-surface-variant: #41474D;
    --md-on-surface:     #E2E2E9;
    --md-on-surface-variant: #C1C7CE;
    --md-outline:        #8B9198;
    --md-outline-variant: #41474D;
    --md-surface-container-lowest: #0C0E13;
    --md-surface-container-low:    #191C20;
    --md-surface-container:        #1D2024;
    --md-surface-container-high:   #272A2F;
    --md-surface-container-highest: #323539;
    --md-inverse-surface: #E2E2E9;
    --md-inverse-on-surface: #2E3135;
    --md-inverse-primary: #1A52A8;

    /* Semantic aliases */
    --bg-primary:   var(--md-surface);
    --bg-secondary: var(--md-surface-container-low);
    --bg-card:      var(--md-surface-container);
    --bg-card-hover:var(--md-surface-container-high);
    --bg-elevated:  var(--md-surface-container-high);

    --surface:       rgba(255,255,255,0.05);
    --surface-hover: rgba(255,255,255,0.08);
    --border:        var(--md-outline-variant);
    --border-hover:  var(--md-outline);

    --text-primary:   var(--md-on-surface);
    --text-secondary: var(--md-on-surface-variant);
    --text-muted:     var(--md-outline);

    --accent:        var(--md-primary);
    --accent-hover:  #C8D9FB;
    --accent-glow:   rgba(168,199,250,0.2);
    --accent-surface:rgba(168,199,250,0.1);

    --gradient-hero: linear-gradient(160deg, #111318 0%, #181C2A 60%, #1A1E36 100%);
    --gradient-accent: linear-gradient(135deg, var(--md-primary) 0%, var(--md-tertiary) 100%);

    /* MD3 Shape Scale */
    --radius-none:  0px;
    --radius-xs:    4px;
    --radius-sm:    8px;
    --radius-md:    12px;
    --radius-lg:    16px;
    --radius-xl:    28px;
    --radius-full:  9999px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:  0 2px 8px rgba(0,0,0,0.5);
    --shadow-lg:  0 4px 20px rgba(0,0,0,0.6);
    --shadow-glow:0 0 32px var(--accent-glow);

    --transition-fast: 0.12s ease;
    --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
    --transition-slow: 0.4s cubic-bezier(0.4,0,0.2,1);

    /* MD3 Typography — Roboto */
    --font: 'Roboto', -apple-system, sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --font-tegaki: 'Yomogi', cursive;
}

/* MD3 Light Theme */
[data-theme="light"] {
    --md-primary:        #1A52A8;
    --md-on-primary:     #FFFFFF;
    --md-primary-container: #D6E3FF;
    --md-on-primary-container: #001848;
    --md-surface:        #F9F9FF;
    --md-surface-variant:#DDE3EA;
    --md-on-surface:     #191C20;
    --md-on-surface-variant:#41474D;
    --md-outline:        #71787E;
    --md-outline-variant:#C1C7CE;
    --md-surface-container-low:    #F3F3FA;
    --md-surface-container:        #EDEDF4;
    --md-surface-container-high:   #E7E8EE;
    --md-surface-container-highest:#E2E2E9;
    --gradient-hero: linear-gradient(160deg,#F9F9FF 0%,#EEF2FF 60%,#E8EFFF 100%);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 32px rgba(26,82,168,0.12);
    --accent-glow: rgba(26,82,168,0.15);
    --accent-surface: rgba(26,82,168,0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }
ul { list-style: none; }

/* ===== Accessibility ===== */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
    position: fixed; top: -100%; left: 50%; transform: translateX(-50%);
    background: var(--accent); color: #fff; padding: 12px 24px;
    border-radius: var(--radius-full); z-index: 10000;
    font-weight: 600; transition: var(--transition);
}
.skip-link:focus { top: 16px; }

*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== Layout ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
/* MD3 Typescale */
h1, h2, h3, h4 {
    font-family: var(--font);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);   /* plain on-surface — no purple tint */
    -webkit-text-fill-color: unset;
    background: none;
}
h1 { font-size: clamp(2.6rem,5vw,3.8rem); font-weight: 900; letter-spacing: -1px; }
h2 { font-size: clamp(1.8rem,3.5vw,2.6rem); letter-spacing: -0.3px; font-weight: 700; }
h3 { font-size: clamp(1.1rem,2vw,1.35rem); font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p  { color: var(--text-secondary); margin-bottom: 1rem; }

/* ===== Material Symbols ===== */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 0;
    transition: var(--transition);
}

[data-theme="light"] .navbar {
    background: rgba(245, 245, 250, 0.8);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex; align-items: center; gap: 12px;
    color: var(--text-primary); font-family: var(--font); font-weight: 600; font-size: 0.95rem;
    letter-spacing: 0; text-decoration: none;
    position: relative;
}

/* Monogram chip with animated gradient border */
.nav-logo .logo-avatar {
    width: 40px; height: 40px;
    border-radius: 14px;
    background: linear-gradient(145deg, #1A4C98 0%, #A8C7FA 100%);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    position: relative;
    animation: logoFloat 4s ease-in-out infinite;
    box-shadow: 0 2px 12px rgba(168,199,250,0.3);
    transition: var(--transition);
}
.nav-logo .logo-avatar::before {
    content: '';
    position: absolute; inset: -2px;
    border-radius: 16px;
    background: conic-gradient(from 0deg, #A8C7FA, #D6BEE4, #A8C7FA);
    z-index: -1;
    animation: logoBorderSpin 3s linear infinite;
    opacity: 0;
    transition: opacity var(--transition);
}
.nav-logo:hover .logo-avatar::before { opacity: 1; }
.nav-logo:hover .logo-avatar {
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 4px 20px rgba(168,199,250,0.5);
}
.nav-logo .logo-initials {
    font-family: var(--font);
    font-weight: 900;
    font-size: 0.92rem;
    color: #fff;
    letter-spacing: 1px;
    line-height: 1;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.nav-logo .logo-name {
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: var(--transition);
}
.nav-logo:hover .logo-name { color: var(--accent); }

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-3px); }
}
@keyframes logoBorderSpin {
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex; gap: 6px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: var(--transition);
    position: relative;
}
.nav-link:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}
.nav-link.active {
    color: var(--accent);
    background: var(--accent-surface);
}

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

.theme-toggle {
    width: 40px; height: 40px;
    border-radius: var(--radius-full);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.theme-toggle:hover {
    background: var(--surface-hover);
    color: var(--accent);
    border-color: var(--border-hover);
}

.hamburger {
    display: none; flex-direction: column;
    gap: 5px; cursor: pointer;
    background: none; border: none; padding: 8px;
}
.hamburger span {
    width: 22px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}
.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 {
    min-height: 100vh;
    background: var(--gradient-hero);
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
    position: absolute; border-radius: 50%;
    filter: blur(70px); opacity: 0.5;
    animation: float 18s ease-in-out infinite;
}
.shape-1 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, rgba(168,199,250,0.35) 0%, transparent 70%);
    top: -120px; right: -80px;
}
.shape-2 {
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(214,190,228,0.25) 0%, transparent 70%);
    bottom: -60px; left: -100px;
    animation-delay: -6s;
}
.shape-3 {
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(168,199,250,0.2) 0%, transparent 70%);
    top: 38%; left: 48%;
    animation-delay: -12s;
}

@keyframes float {
    0%, 100% { transform: translate(0,0) scale(1); }
    33%       { transform: translate(40px,-40px) scale(1.08); }
    66%       { transform: translate(-25px, 25px) scale(0.94); }
}

.hero-content {
    position: relative; z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem; align-items: center;
}

.hero-greeting {
    font-family: var(--font-tegaki);
    font-size: 1.2rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.6s ease both;
}
.hero-title {
    margin-bottom: 1rem;
    /* MD3: strong white/light on-surface heading — no gradient clip */
    color: var(--md-on-surface);
    -webkit-text-fill-color: var(--md-on-surface);
    background: none;
    animation: fadeInUp 0.6s ease 0.1s both;
}
.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease 0.2s both;
}
.hero-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-buttons {
    display: flex; flex-wrap: wrap; gap: 12px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-family: var(--font-tegaki); font-weight: 600; font-size: 1.1rem;
    cursor: pointer; border: none;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn .material-symbols-outlined { font-size: 1.2rem; }

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-surface);
    transform: translateY(-2px);
}

.btn-ghost {
    background: var(--surface);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-ghost:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.5s both;
}

.stat-card {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    position: relative; overflow: hidden;
}
.stat-card:hover {
    transform: translateY(-4px);
}
.stat-card > * { position: relative; z-index: 1; }

.stat-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 8px;
    font-variation-settings: 'FILL' 1;
}
.stat-number {
    font-size: 2.2rem; font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.hero-scroll {
    position: absolute; bottom: 32px; left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}
.scroll-arrow {
    font-size: 2rem; color: var(--text-muted);
    opacity: 0.5;
}

/* ===== Section Styles ===== */
.section {
    padding: 100px 0;
    position: relative;
}
.section-alt {
    background: var(--bg-secondary);
}
.section-dark {
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-tag {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--accent);
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-bottom: 12px;
    padding: 6px 16px;
    background: var(--accent-surface);
    border-radius: var(--radius-full);
    border: 1px solid rgba(168,199,250,0.2);
    position: relative;
    overflow: hidden;
}
.section-tag::after {
    content: '';
    position: absolute; top: 0; left: -100%;
    width: 60%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(168,199,250,0.15), transparent);
    animation: tagShimmer 3s ease-in-out infinite;
}
@keyframes tagShimmer {
    0%   { left: -100%; }
    50%  { left: 150%; }
    100% { left: 150%; }
}
.section-tag.light {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}
.section-tag .material-symbols-outlined { font-size: 1.1rem; }

.section-title {
    margin-bottom: 0.5rem;
}

/* ===== About ===== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}
.about-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-secondary);
}
.about-highlights {
    display: grid; gap: 16px;
}
.highlight-card {
    display: flex; align-items: center; gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.highlight-card:last-child { border-bottom: none; }
.highlight-card:hover {
    transform: translateX(4px);
}
.highlight-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    background: var(--accent-surface);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.highlight-icon .material-symbols-outlined {
    color: var(--accent);
    font-size: 1.4rem;
    font-variation-settings: 'FILL' 1;
}
.highlight-info h4 {
    margin-bottom: 2px;
    font-size: 0.95rem;
}
.highlight-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* ===== Skills ===== */
/* MD3: skills as a flowing list, less card-heavy */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.skill-card {
    padding: 28px 24px;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    transition: var(--transition);
    background: var(--bg-card);
}
.skill-card:hover {
    background: var(--bg-card-hover);
}

.skill-card-header {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 20px;
}
.skill-card-icon {
    width: 44px; height: 44px;
    border-radius: var(--radius-md);
    background: var(--accent-surface);
    display: flex; align-items: center; justify-content: center;
}
.skill-card-icon .material-symbols-outlined {
    color: var(--accent);
    font-size: 1.3rem;
    font-variation-settings: 'FILL' 1;
}
.skill-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0;
}

.skill-list {
    display: flex; flex-wrap: wrap; gap: 8px;
}
.skill-tag {
    background: var(--surface);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.skill-tag:hover {
    background: var(--accent-surface);
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
}

/* ===== Timeline ===== */
.timeline {
    position: relative; padding: 0 0 0 40px;
}
.timeline::before {
    content: '';
    position: absolute; left: 15px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--border));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
    position: absolute; left: -33px; top: 24px;
    width: 12px; height: 12px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
    z-index: 1;
}

.timeline-content {
    padding: 16px 0 28px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.timeline-item:last-child .timeline-content { border-bottom: none; }
.timeline-content:hover {
    transform: translateX(4px);
}

.timeline-content h3 {
    margin-bottom: 6px;
    font-size: 1.2rem;
}
.timeline-meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
    margin-bottom: 12px;
}
.timeline-company, .timeline-date {
    font-size: 0.9rem;
    display: inline-flex; align-items: center; gap: 4px;
}
.timeline-company {
    color: var(--text-secondary);
}
.timeline-company .material-symbols-outlined,
.timeline-date .material-symbols-outlined {
    font-size: 1rem;
}
.timeline-date {
    color: var(--accent);
    font-weight: 600;
}
.timeline-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0;
}

/* ===== Education ===== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
}

.education-card {
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    display: flex; gap: 20px;
}
.education-card:last-child { border-bottom: none; }
.education-card:hover {
    transform: translateY(-4px);
}

.education-icon {
    width: 52px; height: 52px;
    border-radius: var(--radius-md);
    background: var(--accent-surface);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.education-icon .material-symbols-outlined {
    color: var(--accent);
    font-size: 1.5rem;
    font-variation-settings: 'FILL' 1;
}
.education-info h3 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}
.education-institution {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 4px;
}
.education-year {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}
.education-details {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0; line-height: 1.6;
}

/* ===== Projects — MD3 list style, no dense cards ===== */
.projects-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.project-card {
    padding: 28px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    transition: var(--transition);
    display: flex; flex-direction: column;
    position: relative;
}
.project-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--accent);
    opacity: 0;
    transition: var(--transition);
}
.project-card:last-child { border-bottom: none; }
.project-card:hover {
    background: var(--bg-card-hover);
}
.project-card:hover::before { opacity: 1; }

.project-header {
    padding: 0 0 16px 0;
    position: relative; overflow: hidden;
}

.project-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
    position: relative; z-index: 1;
}
.project-header h3 {
    color: var(--text-primary); font-size: 1.3rem;
    margin-bottom: 0;
    position: relative; z-index: 1;
}

.project-body {
    padding: 0;
    flex-grow: 1;
    display: flex; flex-direction: column;
}
.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    flex-grow: 1;
    margin-bottom: 20px;
}

.project-tech {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-bottom: 20px;
}
.tech-badge {
    background: var(--surface);
    color: var(--text-muted);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.tech-badge:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.project-links { display: flex; gap: 16px; }
.project-link {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex; align-items: center; gap: 4px;
    transition: var(--transition);
}
.project-link .material-symbols-outlined { font-size: 1.1rem; }
.project-link:hover {
    color: var(--accent-hover);
    transform: translateX(3px);
}

/* ===== Contact ===== */
.section-dark .section-title { color: var(--text-primary); }

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex; flex-direction: column; gap: 24px;
}
.contact-item {
    display: flex; align-items: flex-start; gap: 16px;
}
.contact-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    background: var(--accent-surface);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contact-icon .material-symbols-outlined {
    color: var(--accent);
    font-size: 1.3rem;
    font-variation-settings: 'FILL' 1;
}
.contact-details h4 {
    color: var(--text-primary);
    margin-bottom: 2px;
    font-size: 0.95rem;
}
.contact-details p {
    color: var(--text-secondary);
    margin: 0; font-size: 0.9rem;
}
.contact-details a {
    color: var(--accent);
}
.contact-details a:hover { text-decoration: underline; }

/* Contact Form */
.contact-form {
    display: flex; flex-direction: column; gap: 16px;
}
.input-wrapper {
    position: relative;
}
.input-icon {
    position: absolute; left: 16px; top: 14px;
    color: var(--text-muted); font-size: 1.2rem;
    pointer-events: none;
    transition: var(--transition);
}
.textarea-wrapper .input-icon { top: 16px; }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: var(--transition);
    resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input:focus ~ .input-icon,
.form-group textarea:focus ~ .input-icon {
    color: var(--accent);
}
/* Icon is before input, use + */
.form-group input:focus + .input-icon,
.form-group textarea:focus + .input-icon {
    color: var(--accent);
}

.btn-submit {
    align-self: flex-start;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
}
.footer-content {
    display: flex; flex-direction: column; align-items: center; gap: 20px;
    text-align: center;
}
.footer-brand {
    display: flex; align-items: center; gap: 8px;
    font-weight: 700; font-size: 1.1rem;
    color: var(--text-primary);
}
.footer-brand .material-symbols-outlined {
    color: var(--accent);
    font-variation-settings: 'FILL' 1;
}
.footer-links {
    display: flex; gap: 24px;
}
.footer-link {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: inline-flex; align-items: center; gap: 4px;
    transition: var(--transition);
}
.footer-link:hover { color: var(--accent); }
.footer-link .material-symbols-outlined { font-size: 1.1rem; }

.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 3rem; }
    .hero-stats { grid-template-columns: repeat(4, 1fr); }
    .about-content { grid-template-columns: 1fr; gap: 2rem; }
    .contact-content { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed; top: 70px; left: 0; right: 0;
        background: var(--bg-elevated);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition);
        backdrop-filter: blur(20px);
    }
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    .nav-link {
        padding: 12px 16px;
        border-radius: var(--radius-md);
    }
    .hamburger { display: flex; }

    .hero { padding: 100px 0 60px; min-height: auto; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-buttons { flex-direction: column; }
    .btn { justify-content: center; }

    .section { padding: 60px 0; }
    .section-header { margin-bottom: 2.5rem; }

    .skills-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .education-grid { grid-template-columns: 1fr; }

    .timeline { padding-left: 32px; }
    .timeline-dot { left: -25px; }

    .education-card { flex-direction: column; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    h1 { font-size: 2.2rem; }
    .hero-stats { gap: 10px; }
    .stat-card { padding: 16px; }
    .stat-number { font-size: 1.6rem; }
}

/* ===== Typed.js Cursor ===== */
.typed-cursor {
    color: var(--accent);
    font-weight: 200;
    font-size: inherit;
    animation: typedBlink 0.7s infinite;
}
@keyframes typedBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ===== GitHub Language Dots ===== */
.lang-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
    vertical-align: middle;
}

/* ===== Loading Spinner ===== */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state .material-symbols-outlined {
    display: inline-block;
}

/* ===== Project Description ===== */
.project-description {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-category {
    display: flex;
    align-items: center;
    gap: 2px;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

/* ===== Toast Notification System ===== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 400px;
    animation: toastSlideIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    pointer-events: auto;
}

.toast.toast-success { border-left: 4px solid #10b981; }
.toast.toast-error { border-left: 4px solid #ef4444; }
.toast.toast-info { border-left: 4px solid var(--accent); }

.toast-icon {
    font-size: 1.5rem;
}
.toast-success .toast-icon { color: #10b981; }
.toast-error .toast-icon { color: #ef4444; }
.toast-info .toast-icon { color: var(--accent); }

.toast-content {
    flex-grow: 1;
    font-size: 0.95rem;
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}
.toast-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.toast.hiding {
    animation: toastSlideOut 0.3s ease-in forwards;
}

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastSlideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

/* ===== Rich Micro-animations ===== */

/* Stat card pop on count */
@keyframes statPop {
    0%   { transform: scale(0.8); opacity: 0; }
    60%  { transform: scale(1.1); }
    100% { transform: scale(1);   opacity: 1; }
}
.stat-card { animation: statPop 0.5s cubic-bezier(0.175,0.885,0.32,1.275) both; }
.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

/* Skill card slide in from left */
@keyframes slideInLeft {
    from { opacity:0; transform: translateX(-20px); }
    to   { opacity:1; transform: translateX(0); }
}
.skill-card.visible { animation: slideInLeft 0.45s cubic-bezier(0.4,0,0.2,1) both; }

/* Project card slide in from right */
@keyframes slideInRight {
    from { opacity:0; transform: translateX(20px); }
    to   { opacity:1; transform: translateX(0); }
}
.project-card.visible { animation: slideInRight 0.45s cubic-bezier(0.4,0,0.2,1) both; }

/* Highlight / education / timeline stagger fade up */
.highlight-card.visible,
.education-card.visible,
.timeline-item.visible {
    animation: fadeInUp 0.5s cubic-bezier(0.4,0,0.2,1) both;
}

/* Section header animate in */
.section-header { animation: fadeInUp 0.5s ease both; }

/* General fluid card transitions */
.project-card, .skill-card, .timeline-content, .highlight-card, .education-card {
    transition: background var(--transition), box-shadow var(--transition);
}

/* Accent link hover underline sweep */
a:not(.btn):not(.nav-link):not(.nav-logo):not(.footer-link) {
    background-image: linear-gradient(currentColor, currentColor);
    background-size: 0% 1px;
    background-repeat: no-repeat;
    background-position: left bottom;
    transition: background-size var(--transition), color var(--transition);
}
a:not(.btn):not(.nav-link):not(.nav-logo):not(.footer-link):hover {
    background-size: 100% 1px;
}

/* Scroll reveal base — keep existing .reveal but enhance timing */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s cubic-bezier(0.4,0,0.2,1), transform 0.55s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}