/* ===============================================
   CSS Variables & Reset
   =============================================== */

:root {
    /* Color Palette - Dark Charcoal & Gold Theme */
    --color-primary-navy: #1A1A1A;
    --color-secondary-navy: #2D2D2D;
    --color-accent-gold: #D4AF37;
    --color-gold-light: #F4E4C1;
    --color-gold-dark: #B8941E;
    
    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-light-gray: #F5F5F7;
    --color-medium-gray: #8E8E93;
    --color-dark-gray: #2C2C2E;
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 16px rgba(212, 175, 55, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Width */
    --container-max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* ===============================================
   Utility Classes
   =============================================== */

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

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

.header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: var(--color-primary-navy);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-normal);
}

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

/* Logo Styles */
.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-accent-gold);
    letter-spacing: 2px;
    margin-top: -4px;
}

/* Navigation */
.nav-list {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent-gold);
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background-color: var(--color-accent-gold);
    transition: transform var(--transition-normal);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger-line {
    width: 28px;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

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

.hero {
    position: relative;
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-secondary-navy) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(10, 25, 41, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

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

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-accent-gold);
    color: var(--color-primary-navy);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background-color: var(--color-gold-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-brand {
    background-color: var(--color-primary-navy);
    color: var(--color-white);
    border: 2px solid var(--color-accent-gold);
}

.btn-brand:hover {
    background-color: var(--color-accent-gold);
    color: var(--color-primary-navy);
    transform: translateY(-2px);
}

.btn-disabled {
    background-color: var(--color-medium-gray);
    color: var(--color-white);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===============================================
   Section Common Styles
   =============================================== */

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary-navy);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-gold) 0%, var(--color-gold-light) 100%);
    margin: 0 auto var(--spacing-md);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.about {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary-navy);
    margin-bottom: var(--spacing-xs);
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-dark-gray);
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.value-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-gold-dark) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.value-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.value-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary-navy);
    margin-bottom: var(--spacing-xs);
}

.value-card p {
    font-size: 0.95rem;
    color: var(--color-medium-gray);
}

/* ===============================================
   Brands Section
   =============================================== */

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

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.brand-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.brand-card:hover {
    border-color: var(--color-accent-gold);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.brand-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-secondary-navy) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.brand-icon svg {
    width: 36px;
    height: 36px;
    color: var(--color-accent-gold);
}

.brand-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary-navy);
    margin-bottom: var(--spacing-xs);
}

.brand-tagline {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-accent-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.brand-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.brand-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.feature-tag {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary-navy);
    background-color: var(--color-gold-light);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
}

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

.contact {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light-gray);
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.contact-info {
    text-align: center;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 500px;
    width: 100%;
    transition: all var(--transition-normal);
}

.contact-info:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-secondary-navy) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.contact-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-accent-gold);
}

.contact-email {
    display: inline-block;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-primary-navy);
    margin-bottom: var(--spacing-sm);
    text-decoration: none;
    position: relative;
    transition: color var(--transition-fast);
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.contact-email:hover {
    color: var(--color-accent-gold);
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent-gold);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.contact-email:hover::after {
    transform: scaleX(1);
}

.contact-message {
    font-size: 1rem;
    color: var(--color-medium-gray);
    margin: 0;
}

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

.footer {
    background-color: var(--color-primary-navy);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent-gold);
    margin-bottom: var(--spacing-sm);
}

.footer-subheading {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent-gold);
    padding-left: var(--spacing-xs);
}

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

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

.social-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.social-icon:hover {
    background-color: var(--color-accent-gold);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ===============================================
   Responsive Design - Mobile First
   =============================================== */

/* Tablets and below (768px) */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-primary-navy);
        padding: var(--spacing-xl) var(--spacing-md);
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        margin-top: var(--spacing-2xl);
    }
    
    .nav-link {
        font-size: 1.1rem;
        width: 100%;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .brands-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
}

/* Mobile devices (480px) */
@media (max-width: 480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-2xl: 4rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .brand-name {
        font-size: 1.5rem;
    }
    
    .brands-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .brand-card {
        padding: var(--spacing-md);
    }
    
    .contact-email {
        font-size: 1.1rem;
    }
    
    .contact-info {
        padding: var(--spacing-md);
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
    }
    
    .contact-icon svg {
        width: 30px;
        height: 30px;
    }
}

/* Large screens (1400px+) */
@media (min-width: 1400px) {
    :root {
        --container-max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
}