/* Global Variables */
:root {
    /* Colors */
    --color-primary: #1A322D; /* Deep Green / Navy */
    --color-secondary: #B8A058; /* Gold Accent */
    --color-neutral-dark: #2C2C2C; /* Dark Gray */
    --color-neutral-medium: #A0A0A0; /* Medium Gray */
    --color-neutral-light: #F5F5F5; /* Light Gray */
    --color-white: #FFFFFF;
    --color-black: #000000;

    /* Typography */
    --font-serif-display: 'Cormorant Garamond', serif;
    --font-serif-body: 'Lora', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --section-padding: 6rem 0; /* Consistent section padding */

    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-serif-body);
    line-height: 1.6;
    color: var(--color-neutral-dark);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif-display);
    color: var(--color-neutral-dark);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.8rem; }
h3 { font-size: 2.2rem; }
h4 { font-size: 1.8rem; }
p { font-size: 1.1rem; margin-bottom: var(--spacing-sm); }

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

a:hover {
    color: var(--color-secondary);
}

/* Layout Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Section Padding */
.section-padding {
    padding: var(--section-padding);
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-secondary);
    border-radius: 2px;
}

.section-description {
    font-size: 1.25rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    color: var(--color-neutral-medium);
}

/* Header */
.main-header {
    background-color: var(--color-white);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-neutral-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

.site-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
    letter-spacing: 1px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-xl);
}

.main-nav a {
    font-family: var(--font-serif-display);
    font-size: 1.2rem;
    color: var(--color-neutral-dark);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-fast);
}

.main-nav a:hover {
    color: var(--color-secondary);
}

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

/* INTRO SECTION: FULLSCREEN CENTERED */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: url('images/image_10.jpg') no-repeat center center/cover;
    color: var(--color-white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4); /* Dark overlay */
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: var(--spacing-md);
}

.hero-subtitle {
    font-family: var(--font-serif-display);
    font-size: 1.8rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 300;
}

.hero-title {
    font-size: 5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    font-weight: 700;
}

.hero-description {
    font-size: 1.4rem;
    max-width: 700px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-serif-body);
}

/* PROCESS SECTION: ICON WITH TEXT */
.process-section {
    background-color: var(--color-neutral-light);
}

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

.process-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.process-icon {
    font-family: var(--font-serif-display);
    font-size: 4rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1;
}

.process-card-title {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.process-card-description {
    font-size: 1rem;
    color: var(--color-neutral-dark);
    line-height: 1.7;
}

/* CASE STUDIES: CATEGORY TABS */
.portfolio-section {
    background-color: var(--color-white);
}

.tabs-navigation {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.tab-button {
    background-color: transparent;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-serif-display);
    font-size: 1.2rem;
    color: var(--color-neutral-medium);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast), border-bottom var(--transition-fast);
    outline: none;
}

.tab-button::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-fast);
}

.tab-button.active,
.tab-button:hover {
    color: var(--color-primary);
}

.tab-button.active::after,
.tab-button:hover::after {
    width: 100%;
}

.tabs-content {
    margin-top: var(--spacing-lg);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease-out forwards;
}

.tab-pane.active {
    display: block;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    justify-content: center; /* Ensure cards are centered if less than 3 */
    align-items: stretch;
}

.portfolio-card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.portfolio-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-normal);
}

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

.portfolio-card-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
    font-weight: 600;
}

.portfolio-card-description {
    font-size: 1rem;
    color: var(--color-neutral-dark);
    padding: 0 var(--spacing-md) var(--spacing-md);
    flex-grow: 1; /* Ensures cards with less text still align at bottom */
}


/* CALL-TO-ACTION: MULTI COLUMN */
.cta-section {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.cta-title {
    color: var(--color-white);
}

.cta-title::after {
    background-color: var(--color-secondary);
}

.cta-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
}

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

.cta-column {
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-xl);
    border-radius: 8px;
    transition: background-color var(--transition-normal), transform var(--transition-normal);
}

.cta-column:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.cta-column-title {
    font-size: 1.8rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.cta-column-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
.main-footer {
    background-color: var(--color-neutral-dark);
    color: var(--color-neutral-medium);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: 0.9rem;
}

.main-footer p {
    margin-bottom: var(--spacing-xs);
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .main-nav ul {
        gap: var(--spacing-md);
    }

    .hero-title {
        font-size: 4rem;
    }

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

@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-description {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .section-description {
        font-size: 1.1rem;
    }

    .process-grid,
    .portfolio-grid,
    .cta-columns {
        grid-template-columns: 1fr; /* Stack to 1 column on mobile */
    }

    .process-card,
    .portfolio-card,
    .cta-column {
        margin-bottom: var(--spacing-md); /* Add spacing between stacked cards */
    }

    .tabs-navigation {
        flex-direction: column;
        align-items: center;
    }

    .tab-button {
        width: 100%;
        max-width: 300px;
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.6rem; }
    p { font-size: 1rem; }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .site-title {
        font-size: 1.8rem;
    }

    .main-nav a {
        font-size: 1rem;
    }

    .section-padding {
        padding: 4rem 0;
    }

    .process-icon {
        font-size: 3rem;
    }

    .process-card-title,
    .cta-column-title {
        font-size: 1.5rem;
    }

    .portfolio-card-title {
        font-size: 1.3rem;
    }
}

/* Visible state helpers */
+ .animate-fade-in-up.visible,
+ .animate-fade-in-left.visible,
+ .animate-fade-in-right.visible,
+ .animate-bounce-y.visible,
+ .section-scroll-animate.visible,
+ .text-animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Safe visibility overrides (auto-added) */
:root, html, body, main, header, footer, section, .container, .content {
  opacity: 1 !important;
  visibility: visible !important;
}