/* ============================================
   Apple-Inspired Minimal Design System
   Clean, Sophisticated, Fluid
   ============================================ */

:root {
    /* Core Colors - Monochrome with subtle warmth */
    --color-bg: #fbfbfd;
    --color-surface: #ffffff;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #86868b;
    --color-border: rgba(0, 0, 0, 0.06);
    --color-border-hover: rgba(0, 0, 0, 0.12);
    
    /* Accent */
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-accent-bg: rgba(0, 113, 227, 0.06);
    
    /* Category Colors */
    --color-ai: #af52de;
    --color-tools: #30d158;
    --color-saas: #ff9f0a;
    
    /* Shadows - Apple-style layered shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06), 0 0 1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.08), 0 0 1px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.10), 0 0 1px rgba(0, 0, 0, 0.06);
    --shadow-float: 0 22px 70px 4px rgba(0, 0, 0, 0.12);
    
    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 100px;
    
    /* Timing */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.35s;
    --duration-slow: 0.5s;
    
    /* Spacing */
    --section-gap: clamp(80px, 10vw, 140px);
    --container-max: 1080px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.47059;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    font-size: 17px;
    letter-spacing: -0.022em;
    overflow-x: hidden;
}

/* ============ Typography - Apple Scale ============ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

.display-hero {
    font-size: clamp(40px, 7vw, 80px);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.display-section {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.07;
}

.body-large {
    font-size: 21px;
    line-height: 1.381;
    letter-spacing: 0.011em;
    color: var(--color-text-secondary);
}

.body-regular {
    font-size: 17px;
    line-height: 1.47059;
    letter-spacing: -0.022em;
}

.caption {
    font-size: 12px;
    line-height: 1.33337;
    letter-spacing: -0.01em;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    font-weight: 600;
}

/* ============ Container ============ */
.container-apple {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
}

.container-wide {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
}

/* ============ Navigation - Frosted Glass ============ */
.nav-apple {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(251, 251, 253, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    height: 52px;
    display: flex;
    align-items: center;
    transition: background var(--duration-normal) var(--ease-out);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    font-size: 21px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    letter-spacing: -0.03em;
    transition: opacity var(--duration-fast) var(--ease-out);
}

.nav-brand:hover {
    opacity: 0.7;
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
}

.nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
    letter-spacing: -0.01em;
}

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

.nav-links a.active {
    color: var(--color-text-primary);
    font-weight: 500;
}

.nav-lang-toggle {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-decoration: none;
    border: 1px solid var(--color-border);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-lang-toggle:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
    background: rgba(0, 0, 0, 0.02);
}

/* Mobile Nav Toggle */
.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text-primary);
}

.nav-mobile-toggle svg {
    width: 20px;
    height: 20px;
}

/* Mobile Navigation */
.nav-mobile-menu {
    display: none;
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(251, 251, 253, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    padding: 32px 24px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--duration-normal) var(--ease-out);
}

.nav-mobile-menu.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.nav-mobile-menu a {
    display: block;
    font-size: 28px;
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .nav-lang-toggle.desktop-only {
        display: none;
    }
    .nav-mobile-toggle {
        display: block;
    }
}

/* ============ Hero Section ============ */
.hero-section {
    padding-top: calc(52px + var(--section-gap));
    padding-bottom: var(--section-gap);
    text-align: center;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0;
    margin-bottom: 16px;
}

.hero-title {
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: clamp(17px, 2.5vw, 21px);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.47;
    letter-spacing: 0.011em;
}

/* Tags - Subtle Capsules */
.tags-flow {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.tag-capsule {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out);
    cursor: default;
    white-space: nowrap;
}

.tag-capsule:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

/* CTA Buttons */
.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-apple {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 17px;
    font-weight: 400;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
    cursor: pointer;
    border: none;
    letter-spacing: -0.022em;
}

.btn-apple-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-apple-primary:hover {
    background: var(--color-accent-hover);
    color: #fff;
    transform: scale(1.02);
}

.btn-apple-secondary {
    background: transparent;
    color: var(--color-accent);
}

.btn-apple-secondary:hover {
    color: var(--color-accent-hover);
    background: var(--color-accent-bg);
}

.btn-apple-ai {
    background: transparent;
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--color-accent);
}

.btn-apple-ai:hover {
    background: var(--color-accent);
    color: #fff;
    transform: scale(1.02);
}

.btn-apple-sm {
    font-size: 14px;
    padding: 8px 18px;
}

/* ============ Sections ============ */
.section {
    padding: var(--section-gap) 0;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(40px, 6vw, 64px);
}

.section-header .caption {
    margin-bottom: 12px;
    display: block;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.47;
}

.section-divider {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: 0;
}

/* ============ Highlight Cards - Stats ============ */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.highlight-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out);
}

.highlight-item:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.highlight-number {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 8px;
}

.highlight-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.highlight-desc {
    font-size: 12px;
    color: var(--color-text-tertiary);
    line-height: 1.4;
}

@media (max-width: 768px) {
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .highlights-grid {
        grid-template-columns: 1fr;
    }
}

/* ============ Project Cards ============ */
.projects-section {
    background: var(--color-bg);
}

/* Category Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 48px;
    background: rgba(0, 0, 0, 0.04);
    border-radius: var(--radius-full);
    padding: 4px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.category-tab {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
}

.category-tab.active {
    background: var(--color-surface);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-sm);
}

.category-tab:hover:not(.active) {
    color: var(--color-text-primary);
}

/* Project Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.project-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    color: inherit;
    text-decoration: none;
}

.project-card-inner {
    padding: 28px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.project-logo-wrap {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f7;
}

.project-logo-wrap img {
    max-width: 36px;
    max-height: 36px;
    object-fit: contain;
}

.project-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: #f5f5f7;
    color: var(--color-text-tertiary);
}

.project-badge.saas {
    background: rgba(255, 159, 10, 0.1);
    color: #cc7f08;
}

.project-badge.tool {
    background: rgba(48, 209, 88, 0.1);
    color: #248a3d;
}

.project-card-name {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.project-card-subtitle {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin-bottom: 12px;
}

.project-card-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.47;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.project-tag {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-tertiary);
    background: #f5f5f7;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.project-card-metrics {
    display: flex;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.metric-label {
    font-size: 11px;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.project-card-arrow {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    margin-top: auto;
    padding-top: 16px;
}

.project-card-arrow svg {
    width: 14px;
    height: 14px;
    transition: transform var(--duration-fast) var(--ease-out);
}

.project-card:hover .project-card-arrow svg {
    transform: translateX(4px);
}

/* Featured project (full width) */
.project-card.featured {
    grid-column: 1 / -1;
}

.project-card.featured .project-card-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.project-card.featured .project-card-metrics {
    gap: 32px;
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card.featured .project-card-inner {
        grid-template-columns: 1fr;
    }
}

/* ============ Legacy Chat (kept for typing indicator) ============ */
.status-dot {
    width: 6px;
    height: 6px;
    background: #30d158;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--color-text-tertiary);
    border-radius: 50%;
    animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.15s; }
.typing-dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* ============ Footer ============ */
.footer-apple {
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-copyright {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

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

.footer-links a {
    font-size: 12px;
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 18px;
    transition: all var(--duration-fast) var(--ease-out);
    display: flex;
    align-items: center;
}

.footer-social a:hover {
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    .footer-left {
        flex-direction: column;
        gap: 8px;
    }
}

/* ============ Scroll Animations ============ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============ Projects Page Specific ============ */
.page-header {
    padding-top: calc(52px + 60px);
    padding-bottom: 40px;
    text-align: center;
}

.page-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -0.035em;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

/* Back button */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: 24px;
    transition: gap var(--duration-fast) var(--ease-out);
}

.back-link:hover {
    gap: 10px;
    color: var(--color-accent-hover);
}

/* ============ Resume Page ============ */
.resume-page {
    padding-top: calc(52px + 60px);
    padding-bottom: 80px;
    background: var(--color-bg);
    min-height: 100vh;
}

.resume-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Resume Hero */
.resume-hero {
    margin-bottom: 56px;
}
.resume-hero-content {
    text-align: center;
}
.resume-name {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}
.resume-role {
    font-size: 16px;
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-bottom: 16px;
}
.resume-summary {
    font-size: 15px;
    color: var(--color-text-tertiary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 24px;
}
.resume-contact-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}
.resume-contact-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
}
.resume-contact-chip:hover {
    border-color: var(--color-border-hover);
    background: #f5f5f7;
    color: var(--color-text-primary);
}
.resume-contact-chip--accent {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}
.resume-contact-chip--accent:hover {
    background: var(--color-accent-hover);
    color: #fff;
    border-color: var(--color-accent-hover);
}

/* Resume Section */
.resume-section {
    margin-bottom: 48px;
}
.resume-section--compact {
    margin-bottom: 32px;
}
.resume-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--color-text-primary);
}
.resume-section-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.04);
    font-size: 15px;
    color: var(--color-text-secondary);
}

/* Education Cards */
.resume-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.resume-edu-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: box-shadow var(--duration-fast) var(--ease-out);
}
.resume-edu-card:hover {
    box-shadow: var(--shadow-md);
}
.resume-edu-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 8px;
}
.resume-edu-info {
    flex: 1;
}
.resume-edu-school {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 4px;
}
.resume-edu-degree {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0 0 6px;
    font-weight: 500;
}
.resume-edu-badge {
    display: inline-block;
    font-size: 12px;
    color: var(--color-accent);
    background: var(--color-accent-bg);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-weight: 600;
}
.resume-edu-detail {
    font-size: 14px;
    color: var(--color-text-tertiary);
    line-height: 1.6;
    margin: 0;
}

/* Resume Date & Location */
.resume-date {
    font-size: 13px;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}
.resume-location {
    font-size: 12px;
    color: var(--color-text-tertiary);
}
.resume-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    flex-shrink: 0;
}

/* Timeline */
.resume-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.resume-timeline-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
}
.resume-timeline-item:first-child {
    padding-top: 0;
}
.resume-timeline-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.resume-timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}
.resume-job-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 4px;
    line-height: 1.4;
}
.resume-company {
    font-size: 14px;
    color: var(--color-accent);
    font-weight: 500;
    margin: 0;
}

/* Resume Tags */
.resume-tag {
    display: inline-block;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(48, 209, 88, 0.1);
    color: #30d158;
    font-weight: 600;
    margin-left: 8px;
    vertical-align: middle;
}
.resume-tag--accent {
    background: rgba(0, 113, 227, 0.1);
    color: var(--color-accent);
}

/* Resume List */
.resume-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.resume-list li {
    padding-left: 16px;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
    position: relative;
    font-size: 14px;
    line-height: 1.7;
}
.resume-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    background: var(--color-text-tertiary);
    border-radius: 50%;
}
.resume-list li:last-child {
    margin-bottom: 0;
}

/* Skills Grid */
.resume-skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.resume-skill-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: box-shadow var(--duration-fast) var(--ease-out);
}
.resume-skill-card:hover {
    box-shadow: var(--shadow-md);
}
.resume-skill-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 14px;
}
.resume-skill-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px;
}
.resume-skill-desc {
    font-size: 13px;
    color: var(--color-text-tertiary);
    line-height: 1.7;
    margin: 0;
}

/* Honors & Awards */
.resume-honors {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.resume-honor-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.resume-honor-level {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 10px 20px;
    margin: 0;
    border-bottom: 1px solid var(--color-border);
}
.resume-honor-level--national {
    background: rgba(255, 59, 48, 0.06);
    color: #ff3b30;
}
.resume-honor-level--provincial {
    background: rgba(0, 113, 227, 0.06);
    color: #0071e3;
}
.resume-honor-level--university {
    background: rgba(48, 209, 88, 0.06);
    color: #30d158;
}
.resume-honor-list {
    padding: 4px 0;
}
.resume-honor-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    gap: 16px;
    transition: background var(--duration-fast) var(--ease-out);
}
.resume-honor-item:hover {
    background: rgba(0, 0, 0, 0.015);
}
.resume-honor-name {
    font-size: 14px;
    color: var(--color-text-primary);
    flex: 1;
}
.resume-honor-date {
    font-size: 13px;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

/* Other Info */
.resume-other-grid {
    display: flex;
    gap: 32px;
    padding: 20px 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}
.resume-other-item {
    display: flex;
    gap: 8px;
    align-items: baseline;
}
.resume-other-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-primary);
    white-space: nowrap;
}
.resume-other-value {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* Resume Responsive */
@media (max-width: 768px) {
    .resume-container {
        padding: 0 16px;
    }
    .resume-skills-grid {
        grid-template-columns: 1fr;
    }
    .resume-edu-header,
    .resume-timeline-header {
        flex-direction: column;
        gap: 4px;
    }
    .resume-meta {
        align-items: flex-start;
        flex-direction: row;
        gap: 8px;
    }
    .resume-other-grid {
        flex-direction: column;
        gap: 12px;
    }
    .resume-contact-row {
        gap: 8px;
    }
    .resume-contact-chip {
        font-size: 12px;
        padding: 6px 12px;
    }
}

/* Legacy section-title class kept for other pages */
.section-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.025em;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
    display: block;
    text-align: left;
}

/* ============ Utility ============ */
.text-center { text-align: center; }
.mt-auto { margin-top: auto; }

/* ============ Responsive ============ */
@media (max-width: 768px) {
    .hero-section {
        padding-top: calc(52px + 48px);
        padding-bottom: 48px;
    }
    
    .cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-apple {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .category-tabs {
        overflow-x: auto;
        width: 100%;
        justify-content: flex-start;
        padding: 4px;
    }
}

/* ============ Accessibility ============ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ============ Typing Cursor (Gemini-style) ============ */
.typing-cursor {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 300;
    animation: blink-cursor 0.8s step-end infinite;
    margin-left: 2px;
}

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

/* ============ Nav Ask AI Button ============ */
.nav-ask-ai {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-accent) !important;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-accent);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--duration-fast) var(--ease-out);
    text-decoration: none;
}

.nav-ask-ai:hover {
    background: var(--color-accent);
    color: #fff !important;
}

.nav-ask-ai svg {
    flex-shrink: 0;
}

/* ============ Floating Chatbot (Gemini-style) ============ */
.chatbot-fab {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 900;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-text-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    padding: 14px 22px;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

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

.chatbot-fab.hidden {
    opacity: 0;
    transform: translateY(20px) scale(0.8);
    pointer-events: none;
}

.chatbot-fab svg {
    flex-shrink: 0;
}

.fab-label {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* Chatbot Overlay (click-outside to close) */
.chatbot-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.chatbot-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Chatbot Panel */
.chatbot-panel {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 901;
    width: 420px;
    max-height: calc(100vh - 100px);
    background: var(--color-surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-float);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}

.chatbot-panel.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.chatbot-panel-header {
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chatbot-panel-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chatbot-close-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    color: var(--color-text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--duration-fast) var(--ease-out);
}

.chatbot-close-btn:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-text-primary);
}

.chatbot-panel-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chatbot-panel-title h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.02em;
}

.chatbot-avatar-glow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-accent);
    flex-shrink: 0;
}

.chatbot-avatar-glow img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chatbot-avatar-glow.fallback {
    background: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-avatar-glow i {
    display: none;
}

.chatbot-status {
    font-size: 12px;
    color: var(--color-text-tertiary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.chatbot-panel-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.chatbot-select {
    font-size: 11px;
    padding: 4px 24px 4px 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 4px center;
    background-size: 12px;
    cursor: pointer;
    outline: none;
}

.chatbot-select:focus {
    border-color: var(--color-accent);
}

.chatbot-icon-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-tertiary);
    transition: all var(--duration-fast) var(--ease-out);
}

.chatbot-icon-btn:hover {
    background: #f5f5f7;
    color: var(--color-text-secondary);
}

/* Chatbot Messages */
/* RAG Tech Banner */
.chatbot-rag-banner {
    padding: 10px 16px;
    background: var(--color-accent-bg);
    border-bottom: 1px solid var(--color-border);
}

.rag-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(0, 113, 227, 0.08);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-bottom: 4px;
}

.rag-badge svg {
    flex-shrink: 0;
}

.rag-desc {
    font-size: 11px;
    line-height: 1.5;
    color: var(--color-text-tertiary);
    margin: 0;
}

.chatbot-messages {
    flex: 1;
    min-height: 280px;
    max-height: 400px;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chatbot-messages::-webkit-scrollbar { width: 3px; }
.chatbot-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.08); border-radius: 3px; }

.chatbot-msg {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    animation: msg-in 0.3s var(--ease-out);
}

.chatbot-msg.user {
    flex-direction: row-reverse;
}

.chatbot-msg-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 11px;
    overflow: hidden;
}

.chatbot-msg-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.chatbot-msg-avatar.assistant {
    background: linear-gradient(135deg, var(--color-accent), #5856d6);
    color: #fff;
}

.chatbot-msg-avatar.user {
    background: #e5e5ea;
    color: var(--color-text-secondary);
}

.chatbot-msg-bubble {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.45;
    word-wrap: break-word;
}

.chatbot-msg-bubble.assistant {
    background: #f5f5f7;
    color: var(--color-text-primary);
    border-bottom-left-radius: 6px;
}

.chatbot-msg-bubble.user {
    background: var(--color-accent);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 6px;
}

/* Chatbot Input Area */
.chatbot-input-area {
    padding: 10px 16px 16px;
    border-top: 1px solid var(--color-border);
}

.chatbot-counter {
    text-align: center;
    font-size: 10px;
    color: var(--color-text-tertiary);
    margin-bottom: 6px;
}

.chatbot-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f5f5f7;
    border-radius: var(--radius-full);
    padding: 6px 6px 6px 16px;
    transition: box-shadow var(--duration-fast) var(--ease-out);
}

.chatbot-input-row:focus-within {
    box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.chatbot-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    color: var(--color-text-primary);
    padding: 6px 0;
    font-family: inherit;
}

.chatbot-input::placeholder {
    color: var(--color-text-tertiary);
}

.chatbot-send {
    width: 32px;
    height: 32px;
    background: var(--color-accent);
    border: none;
    border-radius: 50%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    flex-shrink: 0;
}

.chatbot-send:hover {
    background: var(--color-accent-hover);
    transform: scale(1.05);
}

.chatbot-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

@media (max-width: 480px) {
    .chatbot-panel {
        width: calc(100vw - 24px);
        right: 12px;
        bottom: 12px;
        max-height: calc(100vh - 80px);
    }
    .chatbot-fab {
        right: 16px;
        bottom: 16px;
        padding: 12px 18px;
    }
    .fab-label {
        display: none;
    }
}

/* ============ Project Detail Page ============ */
.detail-page {
    padding-top: calc(52px + 48px);
    padding-bottom: 80px;
}

.detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: 32px;
    transition: gap var(--duration-fast) var(--ease-out);
}

.detail-back:hover {
    gap: 10px;
    color: var(--color-accent-hover);
}

.detail-header {
    margin-bottom: 48px;
}

.detail-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f7;
    margin-bottom: 20px;
}

.detail-logo img {
    max-width: 48px;
    max-height: 48px;
    object-fit: contain;
}

.detail-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -0.035em;
    margin-bottom: 8px;
}

.detail-subtitle {
    font-size: 19px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.detail-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.detail-badge {
    font-size: 12px;
    font-weight: 500;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    background: #f5f5f7;
    color: var(--color-text-secondary);
}

.detail-badge.accent {
    background: var(--color-accent-bg);
    color: var(--color-accent);
}

.detail-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Detail Content Layout */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}

@media (max-width: 900px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

.detail-section {
    margin-bottom: 48px;
}

.detail-section-title {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--color-text-primary);
}

.detail-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* Feature list items */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-item {
    display: block;
    padding: 16px 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: all var(--duration-fast) var(--ease-out);
}

.feature-item:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
    color: inherit;
    text-decoration: none;
}

.feature-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.feature-item-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.feature-item-link {
    color: var(--color-text-tertiary);
    font-size: 12px;
}

.feature-item-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.feature-item-result {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 4px;
}

.feature-updating-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(var(--color-accent-rgb, 0, 122, 255), 0.06);
    border: 1px solid rgba(var(--color-accent-rgb, 0, 122, 255), 0.15);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--color-accent);
    font-weight: 500;
}

.detail-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.detail-list li {
    position: relative;
    padding: 10px 0 10px 20px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-border);
}

.detail-list li:last-child {
    border-bottom: none;
}

.detail-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
}

/* Metrics strip */
.metrics-strip {
    display: flex;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.metrics-strip .metric-block {
    flex: 1;
    text-align: center;
    padding: 24px 16px;
    border-right: 1px solid var(--color-border);
}

.metrics-strip .metric-block:last-child {
    border-right: none;
}

.metric-block-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 4px;
}

.metric-block-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Sidebar card */
.detail-sidebar-card {
    background: #f5f5f7;
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
}

.detail-sidebar-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.sidebar-info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    font-size: 14px;
}

.sidebar-info-row:last-child {
    border-bottom: none;
}

.sidebar-info-label {
    color: var(--color-text-tertiary);
}

.sidebar-info-value {
    color: var(--color-text-primary);
    font-weight: 500;
}

/* Other projects links */
.other-project-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: 14px;
    font-weight: 500;
    transition: color var(--duration-fast) var(--ease-out);
}

.other-project-link:last-child {
    border-bottom: none;
}

.other-project-link:hover {
    color: var(--color-accent);
}

.other-project-link svg {
    width: 14px;
    height: 14px;
    color: var(--color-text-tertiary);
    transition: transform var(--duration-fast) var(--ease-out);
}

.other-project-link:hover svg {
    transform: translateX(3px);
    color: var(--color-accent);
}

/* ============ Print ============ */
@media print {
    .nav-apple, .footer-apple, .chatbot-fab, .chatbot-panel, .cta-group {
        display: none !important;
    }
    .hero-section {
        padding-top: 0;
    }
    body {
        background: white;
        color: black;
    }
}