/* ========================================
   CSS Variables
   ======================================== */

:root {
    /* Colors */
    --color-dark: #0A0A0A;
    --color-light: #F7F7F7;
    --color-gold: #C6A667;
    --color-gray: #8A8A8A;
    --color-gray-light: #D4D4D4;
    --color-gray-dark: #1A1A1A;
    
    /* Typography */
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.375rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.625rem);
    --text-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 2rem);
    --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);
    
    /* Spacing */
    --space-xs: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
    --space-sm: clamp(0.75rem, 0.65rem + 0.5vw, 1.25rem);
    --space-md: clamp(1rem, 0.85rem + 0.75vw, 1.75rem);
    --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 3rem);
    --space-xl: clamp(2rem, 1.5rem + 2.5vw, 4.5rem);
    --space-2xl: clamp(3rem, 2rem + 5vw, 8rem);
    
    /* Layout */
    --container-max: 1280px;
    --container-padding: clamp(1.25rem, 5vw, 3rem);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* ========================================
   Reset & Base
   ======================================== */

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-light);
    background-color: var(--color-dark);
    overflow-x: hidden;
}

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

svg {
    display: block;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   Utilities
   ======================================== */

.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* Focus States */
:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 4px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 4px;
}

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

/* Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Top Bar
   ======================================== */

.top-bar {
    background-color: var(--color-gray-dark);
    border-bottom: 1px solid rgba(198, 166, 103, 0.2);
    padding: var(--space-xs) 0;
    text-align: center;
}

.top-bar p {
    font-size: var(--text-sm);
    color: var(--color-gray-light);
    letter-spacing: 0.02em;
}

/* ========================================
   Header
   ======================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(198, 166, 103, 0.1);
    padding: var(--space-md) 0;
    transition: background-color var(--transition-base);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-light);
    transition: color var(--transition-base);
}

.logo:hover {
    color: var(--color-gold);
}

.nav-list {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-gray-light);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--color-gold);
}

/* Mobile Menu Toggle - Hidden on larger screens */
@media (max-width: 767px) {
    .nav-list {
        display: none;
    }
}

/* ========================================
   Hero
   ======================================== */

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-2xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin-inline: auto;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-light);
    line-height: 1.6;
    max-width: 700px;
    margin-inline: auto;
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-divider {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-gold), transparent);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-dark);
    border: 1px solid var(--color-gold);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-light);
    border: 1px solid var(--color-gray);
}

.btn-secondary:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
    transform: translateY(-2px);
}

/* ========================================
   Social Proof
   ======================================== */

.social-proof {
    padding: var(--space-xl) 0;
    border-bottom: 1px solid rgba(198, 166, 103, 0.1);
}

.social-proof-caption {
    text-align: center;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray);
    margin-bottom: var(--space-lg);
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-lg);
    align-items: center;
    justify-items: center;
}

.client-logo {
    width: 100%;
    max-width: 120px;
    color: var(--color-gray);
    opacity: 0.4;
    transition: opacity var(--transition-base);
}

.client-logo:hover {
    opacity: 0.7;
}

/* ========================================
   Sections
   ======================================== */

.work, .services, .approach, .about, .testimonials, .contact {
    padding: var(--space-2xl) 0;
}

.section-title {
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-xl);
    letter-spacing: -0.01em;
}

/* ========================================
   Work
   ======================================== */

.work {
    background-color: var(--color-gray-dark);
}

.work-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

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

@media (min-width: 1200px) {
    .work-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.work-card {
    position: relative;
}

.work-card-button {
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.work-card-button:hover {
    transform: translateY(-8px);
}

.work-card-image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

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

.work-card-button:hover .work-card-image img {
    transform: scale(1.05);
}

.work-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.work-card-button:hover .work-card-overlay {
    opacity: 1;
}

.work-card-cta {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
}

.work-card-title {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-light);
}

.work-card-outcome {
    font-size: var(--text-sm);
    color: var(--color-gray-light);
    margin-bottom: var(--space-sm);
    line-height: 1.5;
}

.work-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    font-size: var(--text-xs);
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-sm);
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   Services
   ======================================== */

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

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

.service-card {
    padding: var(--space-lg);
    border: 1px solid rgba(198, 166, 103, 0.2);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-gold);
}

.service-icon {
    color: var(--color-gold);
    margin-bottom: var(--space-md);
}

.service-title {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.service-description {
    color: var(--color-gray-light);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.service-list li {
    position: relative;
    padding-left: 1.5rem;
    font-size: var(--text-sm);
    color: var(--color-gray-light);
    line-height: 1.5;
}

.service-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-gold);
}

/* ========================================
   Approach
   ======================================== */

.approach {
    background-color: var(--color-gray-dark);
}

.approach-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .approach-timeline {
        flex-direction: row;
        align-items: flex-start;
        justify-content: space-between;
    }
}

.approach-step {
    flex: 1;
    text-align: center;
}

.approach-number {
    font-family: var(--font-serif);
    font-size: var(--text-sm);
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.1em;
}

.approach-icon {
    color: var(--color-gold);
    margin: 0 auto var(--space-md);
    width: 40px;
    height: 40px;
}

.approach-title {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.approach-description {
    color: var(--color-gray-light);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.approach-connector {
    display: none;
}

@media (min-width: 768px) {
    .approach-connector {
        display: block;
        width: 60px;
        height: 1px;
        background: linear-gradient(to right, transparent, var(--color-gold), transparent);
        margin-top: 60px;
        flex-shrink: 0;
    }
}

/* ========================================
   About
   ======================================== */

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.about-content {
    max-width: 600px;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.about-text p {
    color: var(--color-gray-light);
    line-height: 1.7;
}

.principles-title {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.principles-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.principles-list li {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.principles-list strong {
    color: var(--color-gold);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.principles-list span {
    color: var(--color-gray-light);
    font-size: var(--text-sm);
}

.about-image {
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   Testimonials
   ======================================== */

.testimonials {
    background-color: var(--color-gray-dark);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

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

.testimonial {
    padding: var(--space-lg);
    border-left: 2px solid var(--color-gold);
}

.testimonial-quote {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    line-height: 1.6;
    margin-bottom: var(--space-md);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.testimonial-author cite {
    font-style: normal;
    font-weight: 600;
    color: var(--color-light);
}

.testimonial-role {
    font-size: var(--text-sm);
    color: var(--color-gray);
}

/* ========================================
   Contact
   ======================================== */

.contact-content {
    max-width: 700px;
    margin-inline: auto;
}

.contact-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.contact-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-light);
    margin-top: var(--space-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-light);
}

.form-input,
.form-textarea {
    padding: 0.875rem 1rem;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-light);
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(198, 166, 103, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    font-size: var(--text-xs);
    color: #EF4444;
    min-height: 1rem;
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.form-privacy {
    font-size: var(--text-xs);
    color: var(--color-gray);
    text-align: center;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--color-gray-dark);
    border-top: 1px solid rgba(198, 166, 103, 0.1);
    padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 2fr 1fr;
        align-items: start;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.footer-tagline {
    font-size: var(--text-xs);
    color: var(--color-gray);
}

.footer-nav {
    display: flex;
    justify-content: center;
}

.footer-nav-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.footer-nav-list a {
    font-size: var(--text-sm);
    color: var(--color-gray-light);
    transition: color var(--transition-base);
}

.footer-nav-list a:hover {
    color: var(--color-gold);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

.footer-social a {
    color: var(--color-gray-light);
    transition: color var(--transition-base);
}

.footer-social a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(198, 166, 103, 0.1);
}

.footer-copyright {
    font-size: var(--text-xs);
    color: var(--color-gray);
}

/* ========================================
   Modal
   ======================================== */

.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal[hidden] {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(5px);
    animation: fadeIn var(--transition-base);
}

.modal-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 900px;
    max-height: 85vh;
    background-color: var(--color-gray-dark);
    border: 1px solid rgba(198, 166, 103, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: slideUp var(--transition-slow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(198, 166, 103, 0.1);
}

.modal-title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: 600;
}

.modal-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-light);
    transition: color var(--transition-base);
}

.modal-close:hover {
    color: var(--color-gold);
}

.modal-content {
    padding: var(--space-lg);
    overflow-y: auto;
    max-height: calc(85vh - 100px);
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Toast
   ======================================== */

.toast {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 300;
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-gold);
    color: var(--color-dark);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    animation: slideIn var(--transition-slow);
}

.toast[hidden] {
    display: none;
}

.toast-message {
    font-size: var(--text-sm);
    font-weight: 500;
}

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

/* ========================================
   Responsive Adjustments
   ======================================== */

@media (max-width: 767px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
    
    .footer-content {
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}