/* ===== CSS Variables ===== */
:root {
    --color-bg: #faf9f7;
    --color-bg-alt: #f5f3f0;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-accent: #2c2c2c;
    --color-border: #e5e5e5;
    --color-white: #ffffff;

    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, sans-serif;

    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: 0.03em;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 249, 247, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width var(--transition-medium);
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    width: 30px;
    height: 20px;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: var(--color-text);
    transition: var(--transition-fast);
}

.hamburger {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger::before {
    content: '';
    top: -8px;
}

.hamburger::after {
    content: '';
    top: 8px;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    background-color: var(--color-bg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('asset/pro-pic-2.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.5;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.title-line {
    display: block;
}

.title-line:last-child {
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    letter-spacing: 0.02em;
}

.hero-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid var(--color-text);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all var(--transition-medium);
}

.hero-cta:hover {
    background-color: var(--color-text);
    color: var(--color-white);
}

.hero-scroll {
    position: absolute;
    bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 1;
}

.hero-scroll span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background-color: var(--color-text-light);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* ===== Work/Portfolio Section ===== */
.work-section {
    padding: 8rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
}

.portfolio-item.large {
    grid-column: span 2;
}

.portfolio-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.portfolio-item.large .portfolio-image {
    aspect-ratio: 16/9;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ===== Sectors Section ===== */
.sectors-section {
    padding: 8rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

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

.sector-item {
    position: relative;
    overflow: hidden;
    display: block;
    text-decoration: none;
}

.sector-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.sector-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.sector-item:hover .sector-image img {
    transform: scale(1.05);
}

.sector-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-medium);
}

.sector-item:hover .sector-overlay {
    background: rgba(0,0,0,0.6);
}

.sector-overlay h3 {
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ===== About Section ===== */
.about-section {
    padding: 8rem 2rem;
    background-color: var(--color-bg-alt);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 6rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}

.about-content .section-title {
    margin-bottom: 2rem;
}

.about-text {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-details {
    margin: 3rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.detail-item {
    display: flex;
    gap: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.detail-label {
    min-width: 100px;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.detail-value {
    font-family: var(--font-display);
    font-size: 1.1rem;
}

.about-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-text);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all var(--transition-medium);
}

.about-cta:hover {
    background-color: transparent;
    color: var(--color-text);
    box-shadow: inset 0 0 0 1px var(--color-text);
}

/* ===== Contact Section ===== */
.contact-section-minimal {
    padding: 8rem 2rem;
    text-align: center;
    background-color: var(--color-bg-alt);
}

.contact-section-minimal .section-title {
    margin-bottom: 1rem;
}

.contact-tagline {
    color: var(--color-text-light);
    font-size: 1.1rem;
    margin-bottom: 4rem;
}

.contact-cards {
    display: flex;
    justify-content: center;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem 2.5rem;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    flex: 1;
    max-width: 300px;
    transition: all var(--transition-medium);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    border-color: transparent;
}

.contact-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-card-label {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
}

.contact-card-value {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--color-text);
}

/* ===== Subpage Styles ===== */
.page-header {
    padding: 10rem 2rem 4rem;
    text-align: center;
    background-color: var(--color-bg-alt);
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    letter-spacing: 0.02em;
}

.gallery-section {
    padding: 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-caption {
    padding: 1.5rem;
    background-color: var(--color-white);
}

.gallery-caption h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.gallery-caption p {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.back-link-container {
    padding: 3rem 2rem;
    text-align: center;
}

.back-link {
    display: inline-block;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-text);
}

.nav-link.active::after {
    width: 100%;
}

/* ===== Footer ===== */
.footer {
    padding: 3rem 2rem;
    border-top: 1px solid var(--color-border);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.back-to-top {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.back-to-top:hover {
    color: var(--color-text);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-item.large {
        grid-column: span 2;
    }

    .sectors-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-container {
        gap: 4rem;
    }

    .contact-container {
        gap: 4rem;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right var(--transition-medium);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        font-size: 1.5rem;
    }

    .nav-toggle.active .hamburger {
        background-color: transparent;
    }

    .nav-toggle.active .hamburger::before {
        top: 0;
        transform: rotate(45deg);
    }

    .nav-toggle.active .hamburger::after {
        top: 0;
        transform: rotate(-45deg);
    }

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

    .portfolio-item.large {
        grid-column: span 1;
    }

    .portfolio-item.large .portfolio-image {
        aspect-ratio: 4/3;
    }

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

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

    .about-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .contact-cards {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .contact-card {
        width: 100%;
        max-width: 400px;
    }

    .footer-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .work-section,
    .about-section,
    .contact-section {
        padding: 5rem 1.5rem;
    }

    .detail-item {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ===== Animations ===== */
@media (prefers-reduced-motion: no-preference) {
    .portfolio-item,
    .about-content,
    .about-image,
    .contact-info,
    .contact-form {
        opacity: 0;
        transform: translateY(30px);
        animation: fadeInUp 0.8s ease forwards;
    }

    .portfolio-item:nth-child(1) { animation-delay: 0.1s; }
    .portfolio-item:nth-child(2) { animation-delay: 0.2s; }
    .portfolio-item:nth-child(3) { animation-delay: 0.3s; }
    .portfolio-item:nth-child(4) { animation-delay: 0.4s; }
    .portfolio-item:nth-child(5) { animation-delay: 0.5s; }
    .portfolio-item:nth-child(6) { animation-delay: 0.6s; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}