@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ===== Design Tokens ===== */
:root {
    --bg: #f7f6f3;
    --surface: #ffffff;
    --elevated: #f0ede8;
    --border: #e5e1da;
    --border-hover: #c8c3bc;
    --text: #1c1a18;
    --text-2: #706b65;
    --text-3: #aaa49e;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-soft: #eff6ff;
    --accent-border: #bfdbfe;
    --r: 8px;
    --ease: 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(247, 246, 243, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.9rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav-logo:hover { color: var(--accent-dark); }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
}

.nav-link {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color var(--ease);
}

.nav-link::after { display: none; }
.nav-link:hover { color: var(--text); }

.nav-resume {
    background: var(--accent) !important;
    border: 1px solid var(--accent) !important;
    border-radius: var(--r) !important;
    color: #fff !important;
    padding: 0.4rem 0.9rem;
    font-size: 0.875rem;
    font-weight: 500 !important;
}

.nav-resume:hover {
    background: var(--accent-dark) !important;
    border-color: var(--accent-dark) !important;
    color: #fff !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: var(--ease);
    border-radius: 1px;
}

/* ===== Hero ===== */
.hero {
    min-height: 72vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
}

.hero-content {
    animation: fadeInUp 0.6s ease both;
    text-align: left;
}

.hero-text {
    max-width: 720px;
}

.greeting {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 0.6rem;
    letter-spacing: 0.01em;
}

.name {
    display: block;
    font-size: clamp(2.8rem, 6.5vw, 4.75rem);
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 0.75rem;
}

.gradient-text {
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: var(--text) !important;
    background-clip: unset !important;
    color: var(--text) !important;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-2);
    font-weight: 400;
    margin-bottom: 0.875rem;
}

.hero-description {
    font-size: 1rem;
    color: var(--text-2);
    max-width: 560px;
    margin-bottom: 1.75rem;
    line-height: 1.75;
}

.hero-cta {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.65rem 1.25rem;
    border-radius: var(--r);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.925rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--ease);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
}

.btn-secondary {
    background: transparent;
    color: var(--text-2);
    border: 1px solid var(--border-hover);
}

.btn-secondary:hover {
    border-color: var(--text-2);
    color: var(--text);
}

.social-links {
    display: flex;
    gap: 0.65rem;
    justify-content: flex-start;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--border-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--ease);
}

.social-link:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-soft);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 18px;
    height: 28px;
    border: 1px solid var(--border-hover);
    border-radius: 9px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 6px;
    background: var(--text-3);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

/* ===== Sections ===== */
section {
    padding: 5rem 0;
}

.about,
.projects {
    background: var(--surface);
}

.section-title {
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2.5rem;
    letter-spacing: -0.025em;
    text-align: center;
    display: block;
    position: static;
    left: auto;
    transform: none;
}

.section-title::after {
    content: '';
    display: block;
    width: 28px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    margin: 0.6rem auto 0;
}

/* ===== Cards ===== */
.glass-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 1.75rem;
    transition: border-color var(--ease), box-shadow var(--ease);
    backdrop-filter: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.glass-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px rgba(0,0,0,0.07);
    background: var(--surface);
}

/* ===== About ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 880px;
    margin: 0 auto;
}

.about-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    text-align: left;
}

.about-card-full {
    grid-column: 1 / -1;
}

.card-icon {
    width: 46px;
    height: 46px;
    margin: 0 auto 1rem;
    border-radius: var(--r);
    background: var(--elevated);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-2);
}

.card-icon-inline {
    width: 46px;
    height: 46px;
    min-width: 46px;
    border-radius: var(--r);
    background: var(--elevated);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-2);
    transition: all var(--ease);
}

.about-card:hover .card-icon-inline {
    border-color: var(--border-hover);
    color: var(--text);
}

.card-text {
    flex: 1;
}

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.6rem;
    letter-spacing: -0.015em;
}

.about-card p {
    color: var(--text-2);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 0.3rem;
}

.highlight {
    color: var(--text);
    font-weight: 500;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.875rem;
}

.skill-tag {
    background: var(--bg);
    color: var(--text-2);
    padding: 0.35rem 0.8rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 400;
    border: 1px solid var(--border);
    transition: all var(--ease);
}

.skill-tag:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-soft);
}

.specialization-list {
    list-style: none;
    text-align: left;
    color: var(--text-2);
}

.specialization-list li {
    padding: 0.4rem 0;
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.975rem;
}

.specialization-list li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--text-3);
}

/* ===== Experience Timeline ===== */
.timeline {
    position: relative;
    padding-left: 2rem;
    max-width: 880px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.25rem;
}

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

.timeline-dot {
    position: absolute;
    left: -2.38rem;
    top: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--accent-soft);
}

.timeline-content {
    margin-left: 0.75rem;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.timeline-header h3 {
    font-size: 1.15rem;
    color: var(--text);
    font-weight: 600;
    letter-spacing: -0.015em;
}

.timeline-date {
    color: var(--text-3);
    font-weight: 400;
    font-size: 0.875rem;
}

.company {
    color: var(--text-2);
    font-weight: 400;
    font-size: 0.95rem;
    margin-bottom: 0.875rem;
}

.achievement-list {
    list-style: none;
    color: var(--text-2);
    margin-bottom: 1.1rem;
    font-size: 0.975rem;
}

.achievement-list li {
    padding: 0.35rem 0;
    padding-left: 1.35rem;
    position: relative;
    line-height: 1.65;
}

.achievement-list li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--text-3);
}

.achievement-list li strong {
    color: var(--text);
    font-weight: 500;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.tech-tag {
    background: var(--bg);
    color: var(--text-2);
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    font-size: 0.825rem;
    font-weight: 400;
    border: 1px solid var(--border);
    transition: all var(--ease);
}

.tech-tag:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-soft);
}

/* ===== Projects ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.875rem;
}

.project-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--r);
    background: var(--elevated);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-2);
    transition: var(--ease);
}

.project-card:hover .project-icon {
    border-color: var(--border-hover);
    color: var(--text);
}

.project-link {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--ease);
}

.project-link:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-soft);
}

.project-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.project-description {
    color: var(--text-2);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.project-description strong {
    color: var(--text);
    font-weight: 500;
}

/* ===== Contact ===== */
.contact-content {
    text-align: center;
    max-width: 620px;
    margin: 0 auto;
}

.contact-description {
    font-size: 1.05rem;
    color: var(--text-2);
    margin-bottom: 2rem;
    line-height: 1.75;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.contact-card {
    text-align: center;
    text-decoration: none;
    color: var(--text);
    padding: 2rem 1.25rem;
    display: block;
}

.contact-card i {
    font-size: 1.6rem;
    color: var(--text-2);
    margin-bottom: 0.7rem;
    display: block;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
}

.contact-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.contact-card p {
    color: var(--text-2);
    font-size: 0.9rem;
}

.contact-card:hover i {
    color: var(--text);
}

/* ===== Gallery Button ===== */
.view-gallery-btn {
    margin-top: 1.1rem;
    padding: 0.55rem 1.1rem;
    background: var(--elevated);
    color: var(--text-2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: all var(--ease);
}

.view-gallery-btn:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

.view-gallery-btn i {
    font-size: 0.9rem;
}

/* ===== Gallery Modal ===== */
.gallery-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.25s ease;
}

.gallery-modal.active {
    display: flex;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.gallery-content {
    position: relative;
    width: 90%;
    max-width: 1100px;
    max-height: 90vh;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 2rem;
    overflow-y: auto;
    z-index: 10000;
    animation: slideUp 0.3s ease;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.gallery-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    background: var(--elevated);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-2);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-close:hover {
    color: var(--text);
    border-color: var(--border-hover);
}

.gallery-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1.5rem;
    letter-spacing: -0.015em;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--r);
    overflow: hidden;
    cursor: pointer;
    transition: border-color var(--ease);
    border: 1px solid var(--border);
}

.gallery-item:hover {
    border-color: var(--border-hover);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.gallery-item:hover img {
    transform: scale(1.04);
}

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 100%);
    padding: 0.75rem;
    transform: translateY(100%);
    transition: transform 0.2s ease;
}

.gallery-item:hover .gallery-item-overlay {
    transform: translateY(0);
}

.gallery-item-title {
    color: white;
    font-weight: 500;
    font-size: 0.9rem;
}

.gallery-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--elevated);
    border: 1px dashed var(--border);
    border-radius: var(--r);
    padding: 2rem;
    text-align: center;
    aspect-ratio: 16/9;
}

.gallery-placeholder i {
    font-size: 1.75rem;
    color: var(--text-3);
    margin-bottom: 0.75rem;
}

.gallery-placeholder p {
    color: var(--text-3);
    font-size: 0.9rem;
}

.gallery-nav {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.gallery-nav-btn {
    width: 36px;
    height: 36px;
    background: var(--elevated);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-2);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-nav-btn:hover {
    color: var(--text);
    border-color: var(--border-hover);
}

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10002;
}

.lightbox-close:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

#lightboxImage {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 6px;
    z-index: 10001;
    animation: zoomIn 0.2s ease;
}

.lightbox-caption {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    padding: 0.5rem 1.1rem;
    border-radius: var(--r);
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 10001;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 10001;
    pointer-events: none;
}

.lightbox-nav-btn {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: all;
}

.lightbox-nav-btn:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

/* ===== Footer ===== */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-3);
    font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0);    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0);    }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.92); }
    to   { opacity: 1; transform: scale(1);    }
}

@keyframes scroll {
    0%   { opacity: 1; transform: translateX(-50%) translateY(0);    }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

[data-animate="fade-in"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-animate="fade-in"].animate {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 58px;
        flex-direction: column;
        background: rgba(247, 246, 243, 0.98);
        width: 100%;
        text-align: center;
        transition: left 0.2s ease;
        padding: 1.5rem 0;
        border-top: 1px solid var(--border);
        gap: 1.25rem;
    }

    .nav-menu.active { left: 0; }
    .hamburger { display: flex; }

    .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(7px, 7px); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .timeline { padding-left: 1.5rem; }
    .timeline-dot { left: -1.9rem; }

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

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

    section { padding: 3.5rem 0; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .nav-container { padding: 0.75rem 1.25rem; }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
    }

    .gallery-content {
        width: 95%;
        padding: 1.25rem;
        max-height: 95vh;
    }

    .gallery-title { font-size: 1.15rem; }
    .gallery-grid { grid-template-columns: 1fr; }

    .lightbox-close { top: 0.75rem; right: 0.75rem; }
    .lightbox-caption { bottom: 0.75rem; }
    .lightbox-nav { padding: 0 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}