/* ===== Editorial Design Tokens & Themes ===== */
:root {
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.3s ease;
}

/* Base Monochrome Colors (Used by all themes) */
:root {
    --white: #ffffff;
    --black: #111111;
    --gray-light: #f5f5f5;
    --gray-mid: #e0e0e0;
    --gray-dark: #666666;
}

/* THEME OPTION 1: Subtle Red Hover */
body.theme-opt1 {
    --bg-main: var(--white);
    --bg-secondary: var(--gray-light);
    --text-primary: var(--black);
    --text-secondary: var(--gray-dark);
    --border-color: var(--black);
    --accent-color: #dc2626; /* Crimson Red */
}

/* THEME OPTION 2: Subtle Gold Hover */
body.theme-opt2 {
    --bg-main: var(--white);
    --bg-secondary: var(--gray-light);
    --text-primary: var(--black);
    --text-secondary: var(--gray-dark);
    --border-color: var(--black);
    --accent-color: #d4af37; /* Gold */
}

/* THEME OPTION 3: Red & Gold Accents */
body.theme-opt3 {
    --bg-main: var(--black);
    --bg-secondary: #1a1a1a;
    --text-primary: var(--white);
    --text-secondary: var(--gray-mid);
    --border-color: var(--gray-dark);
    --accent-color: #eab308; /* Bright Yellow/Gold */
    --accent-secondary: #ef4444; /* Red */
}
body.theme-opt3 .accordion-header:hover .accordion-num {
    color: var(--accent-secondary);
}
body.theme-opt3 .hero-kicker, 
body.theme-opt3 .small-title {
    color: var(--accent-secondary);
}
body.theme-opt3 .btn-ghost:hover, 
body.theme-opt3 .btn-ghost-dark:hover {
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
    background: transparent;
}
body.theme-opt3 .accordion-item.active .accordion-icon {
    color: var(--accent-secondary);
}
body.theme-opt3 .tag:hover {
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

/* THEME OPTION 4: Pure Monochrome */
body.theme-opt4 {
    --bg-main: var(--white);
    --bg-secondary: var(--gray-light);
    --text-primary: var(--black);
    --text-secondary: var(--gray-dark);
    --border-color: var(--black);
    --accent-color: var(--gray-dark);
}

/* ===== Global Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Typography */
h1, h2, h3, .logo-text {
    font-family: var(--font-heading);
    font-weight: 400;
}

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

/* Layout Utilities */
.container {
    max-width: 1400px; /* Wider container for editorial feel */
    margin: 0 auto;
    padding: 0 4rem;
}

.section {
    padding: 8rem 0; /* Huge vertical whitespace */
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: 1000;
    transition: var(--transition-fast);
    background: transparent;
}

.navbar.scrolled {
    background: var(--bg-main);
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

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

.nav-links a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--accent-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 25px;
    height: 1px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* ===== Hero Section (50/50 Split) ===== */
.hero {
    display: flex;
    min-height: 100vh;
}

.hero-left {
    flex: 1;
    display: flex;
    align-items: flex-end;
    padding: 8rem 4rem 6rem;
}

.hero-right {
    flex: 1;
    background-color: var(--bg-secondary);
    background-image: url('hero-image.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

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

.hero-kicker {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-title {
    font-size: 5rem;
    line-height: 1.05;
    margin-bottom: 3rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    max-width: 450px;
}

/* Ghost Buttons */
.btn-ghost {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid var(--border-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-fast);
    background: transparent;
    color: var(--text-primary);
}

.btn-ghost:hover {
    background: var(--text-primary);
    color: var(--bg-main);
    border-color: var(--text-primary);
}

.btn-ghost-dark {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid var(--bg-main);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-fast);
    background: var(--bg-main);
    color: var(--text-primary);
}

.btn-ghost-dark:hover {
    background: transparent;
    color: var(--bg-main);
}

/* ===== About Section ===== */
.about-content {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    border-top: 1px solid var(--border-color);
    padding-top: 4rem;
}

.section-heading {
    font-size: 3.5rem;
    flex: 1;
    line-height: 1.1;
}

.about-text-blocks {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-text-blocks p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ===== Expertise Accordion ===== */
.expertise-header {
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-header {
    display: flex;
    align-items: center;
    padding: 2.5rem 0;
    cursor: pointer;
    transition: var(--transition-fast);
}

.accordion-header:hover .accordion-title {
    color: var(--accent-color);
}

.accordion-num {
    font-size: 0.9rem;
    width: 60px;
    color: var(--text-secondary);
}

.accordion-title {
    font-size: 2.5rem;
    flex: 1;
    transition: var(--transition-fast);
}

.accordion-icon {
    font-size: 2rem;
    font-weight: 300;
    transition: transform 0.4s ease;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-inner {
    padding: 0 0 3rem 60px; /* Offset to align with title */
    color: var(--text-secondary);
    max-width: 800px;
}

.accordion-inner p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.accordion-inner ul {
    list-style-type: square;
    margin-left: 1.5rem;
}

.accordion-inner li {
    margin-bottom: 0.5rem;
}

/* Active Accordion State */
.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
    color: var(--accent-color);
}

.tags-container {
    margin-top: 5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--text-primary);
    color: var(--bg-main);
    padding: 8rem 0 2rem;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6rem;
}

.footer-heading {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.footer-text {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    opacity: 0.7;
}

.small-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.footer-areas p:last-child {
    max-width: 300px;
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    font-size: 0.85rem;
    opacity: 0.5;
}

body.theme-opt3 .footer {
    background-color: var(--white);
    color: var(--black);
}
body.theme-opt3 .btn-ghost-dark {
    border-color: var(--black);
    background: var(--black);
    color: var(--white);
}

/* ===== Theme Switcher ===== */
.theme-switcher {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #000;
    color: #fff;
    padding: 10px;
    border-radius: 4px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    font-family: 'Inter', sans-serif;
    font-size: 12px;
}

.theme-switcher h4 {
    margin: 0;
    font-size: 12px;
    text-align: center;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.theme-btn {
    background: #222;
    color: #fff;
    border: 1px solid #444;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.theme-btn:hover, .theme-btn.active {
    background: #fff;
    color: #000;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .container { padding: 0 2rem; }
    .hero-title { font-size: 4rem; }
    .about-content { flex-direction: column; gap: 2rem; }
}

@media (max-width: 768px) {
    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-main);
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease;
        z-index: 999;
    }
    .nav-links.active {
        right: 0;
    }
    .nav-links a {
        font-size: 1.5rem;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero { flex-direction: column; }
    .hero-left { padding: 8rem 2rem 4rem; }
    .hero-right { min-height: 300px; }
    .hero-title { font-size: 3rem; }
    .accordion-title { font-size: 1.8rem; }
    .accordion-inner { padding-left: 0; }
    .accordion-num { display: none; }
    .footer-grid { flex-direction: column; gap: 4rem; }
}