/* ========================================
   Lisbon Photography - Main Stylesheet
   ======================================== */

/* CSS Variables / Design Tokens */
:root {
    /* Colors */
    --color-primary: #c87941;
    --color-primary-dark: #a66835;
    --color-primary-light: #d4956a;
    
    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    
    --color-background: #ffffff;
    --color-background-alt: #f8f6f3;
    --color-background-dark: #2d2d2d;
    
    --color-border: #e5e5e5;
    --color-border-light: #f0f0f0;
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

/* ========================================
   Base Styles / Reset
   ======================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

/* ========================================
   Layout / Container
   ======================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

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

.section-title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-text);
}

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

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

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

.btn-outline:hover {
    background-color: var(--color-text);
    color: var(--color-background);
}

.btn-icon {
    width: 16px;
    height: 16px;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-base);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-background);
    transition: color var(--transition-base);
}

.header.scrolled .logo {
    color: var(--color-text);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.header.scrolled .nav-link {
    color: var(--color-text-secondary);
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-background);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-background);
    transition: all var(--transition-base);
}

.header.scrolled .nav-toggle span {
    background-color: var(--color-text);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.3) 100%
    );
}

.hero-content {
    position: relative;
    max-width: 600px;
    padding: var(--spacing-3xl) 0;
}

.hero-title {
    color: var(--color-background);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    font-style: italic;
    letter-spacing: -0.02em;
}

.hero-title-accent {
    font-style: italic;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
}

/* ========================================
   Featured Work Section
   ======================================== */

.featured-work {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-background);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.work-card {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

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

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

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

.work-card-content {
    padding: var(--spacing-md) 0;
    text-align: center;
}

.work-card-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.work-card-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ========================================
   Stories Section
   ======================================== */

.stories-section {
    background-color: var(--color-background-alt);
}

.stories-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.stories-content {
    padding: var(--spacing-3xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stories-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.stories-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.stories-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.stories-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-top: var(--spacing-sm);
    transition: gap var(--transition-base);
}

.stories-link:hover {
    gap: var(--spacing-sm);
}

.stories-link svg {
    transition: transform var(--transition-base);
}

.stories-link:hover svg {
    transform: translateX(4px);
}

.stories-image {
    position: relative;
}

.stories-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 500px;
}

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

.testimonials {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-background);
}

.testimonial-card {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-xl);
}

.testimonial-stars {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.testimonial-quote {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-style: italic;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    overflow: hidden;
}

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

.testimonial-info {
    text-align: left;
}

.testimonial-name {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.testimonial-role {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(
        135deg,
        #c87941 0%,
        #d4956a 50%,
        #e8b68d 100%
    );
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(255, 255, 255, 0) 100%
    );
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.cta-text {
    color: var(--color-text);
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-background-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.feature-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

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

.footer {
    background-color: var(--color-background-dark);
    color: var(--color-background);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    max-width: 280px;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-background);
    transition: all var(--transition-base);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer-nav-title {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-background);
}

.footer-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-nav-list a,
.footer-nav-list li {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .work-grid {
        gap: var(--spacing-md);
    }
    
    .stories-content {
        padding: var(--spacing-2xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl) var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu .nav-link {
        color: var(--color-text);
        padding: var(--spacing-sm) 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .work-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .stories-grid {
        grid-template-columns: 1fr;
    }
    
    .stories-content {
        padding: var(--spacing-xl);
        order: 2;
    }
    
    .stories-image {
        order: 1;
    }
    
    .stories-image img {
        min-height: 350px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .feature-item {
        padding: var(--spacing-md);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-tagline {
        max-width: none;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: var(--spacing-2xl) 0;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ========================================
   Animations
   ======================================== */

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

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.work-card {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.work-card:nth-child(1) { animation-delay: 0.1s; }
.work-card:nth-child(2) { animation-delay: 0.2s; }
.work-card:nth-child(3) { animation-delay: 0.3s; }