/* ============================================
   AZZ&CO LABS - Luxury Icy Futuristic Design
   Colors: White, Black, Gold
   ============================================ */

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

:root {
    /* Luxury Color Palette - Icy Futuristic */
    --color-black: #000000;
    --color-black-soft: #0a0a0a;
    --color-black-light: #1a1a1a;
    --color-white: #ffffff;
    --color-white-soft: #fafafa;
    --color-white-warm: #f5f5f5;
    --color-gold: #d4af37;
    --color-gold-light: #f4e4bc;
    --color-gold-bright: #ffd700;
    --color-gold-glow: rgba(212, 175, 55, 0.3);
    --color-ice: #e8f4f8;
    --color-ice-light: #f0f8fa;
    
    /* Text Colors */
    --text-primary: #000000;
    --text-secondary: #4a4a4a;
    --text-tertiary: #8a8a8a;
    --text-white: #ffffff;
    --text-gold: #d4af37;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f5f5f5;
    --bg-grey-light: #f8f8f8;
    --bg-grey-medium: #e8e8e8;
    --bg-grey-dark: #d0d0d0;
    --bg-dark: #000000;
    --bg-dark-soft: #0a0a0a;
    --bg-ice: #f0f8fa;
    
    /* Gradients - Luxury & Icy */
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #ffd700 50%, #f4e4bc 100%);
    --gradient-gold-subtle: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(255, 215, 0, 0.05) 100%);
    --gradient-ice: linear-gradient(180deg, #ffffff 0%, #f0f8fa 100%);
    --gradient-dark: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.8) 100%);
    
    /* Shadows - Luxury depth */
    --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-large: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-gold: 0 0 20px rgba(212, 175, 55, 0.2);
    --shadow-gold-glow: 0 0 40px rgba(212, 175, 55, 0.3);
    --shadow-ice: 0 4px 20px rgba(232, 244, 248, 0.5);
    
    /* Borders */
    --border-light: 1px solid rgba(0, 0, 0, 0.08);
    --border-gold: 1px solid rgba(212, 175, 55, 0.3);
    --border-gold-bright: 1px solid rgba(212, 175, 55, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-display: 'Inter', sans-serif;
    
    /* Transitions - Smooth luxury */
    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-gold: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    background: var(--bg-primary);
    font-size: 18px;
    font-weight: 300;
}

/* Navigation - Luxury Minimalist */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-light);
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-soft);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 60px;
    width: auto;
    transition: var(--transition-base);
}

.logo-img:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9375rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    transition: var(--transition-base);
    padding: 0.5rem 0;
}

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

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

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 24px;
    height: 1px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

/* Hero Section - Icy Luxury */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-ice);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

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

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 200;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.1;
}

.hero-title .gradient-text {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.9;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons - Luxury Gold */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 0.9375rem;
    font-weight: 400;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid transparent;
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.btn-primary:hover {
    background: var(--color-black-soft);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-invest {
    background: var(--gradient-gold);
    color: var(--color-black);
    border-color: transparent;
    font-weight: 500;
}

.btn-invest:hover {
    box-shadow: var(--shadow-gold-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-light);
}

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Section Styles */
.section {
    padding: 6rem 0;
    position: relative;
}

/* Background variations with grey shades */
.section.bg-grey-light {
    background: var(--bg-grey-light);
}

.section.bg-grey-medium {
    background: var(--bg-grey-medium);
}

.section.bg-pattern {
    background: 
        repeating-linear-gradient(
            45deg,
            var(--bg-primary),
            var(--bg-primary) 10px,
            var(--bg-grey-light) 10px,
            var(--bg-grey-light) 20px
        );
}

.section.bg-gradient-grey {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-grey-light) 50%, var(--bg-primary) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-gold);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: var(--border-gold);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 200;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-description {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Cards - Luxury Minimalist */
.card {
    background: var(--bg-primary);
    border: var(--border-light);
    border-radius: 0;
    padding: 2.5rem;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.card:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-medium);
    transform: translateY(-4px);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.card-text {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* Investment Cards */
.investment-card {
    background: var(--bg-primary);
    border: var(--border-light);
    padding: 3rem 2.5rem;
    position: relative;
    transition: var(--transition-base);
}

.investment-card.featured {
    border-color: var(--color-gold);
    border-width: 2px;
}

.investment-card:hover {
    box-shadow: var(--shadow-gold);
    transform: translateY(-8px);
}

.investment-amount {
    font-size: 3rem;
    font-weight: 200;
    color: var(--text-primary);
    margin: 1.5rem 0;
    letter-spacing: -2px;
}

.investment-amount .currency {
    font-size: 1.5rem;
    color: var(--text-gold);
    vertical-align: top;
}

/* Forms - Luxury Minimalist */
.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: var(--border-light);
    transition: var(--transition-base);
    font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px var(--color-gold-glow);
}

/* Footer */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1.5rem;
    opacity: 1 !important;
    display: block !important;
    visibility: visible !important;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 0.875rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    color: var(--color-gold);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 300;
    transition: var(--transition-base);
}

.footer-section ul li a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--text-tertiary);
}

/* Chatbot Widget */
.chatbot-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-gold);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-gold);
    transition: var(--transition-base);
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-gold-glow);
}

.chatbot-container {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    height: 600px;
    background: var(--bg-primary);
    border: var(--border-light);
    box-shadow: var(--shadow-large);
    display: none;
    flex-direction: column;
}

.chatbot-container.active {
    display: flex;
}

.chatbot-header {
    padding: 1.5rem;
    border-bottom: var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-header h3 {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.chatbot-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
}

.chatbot-close:hover {
    color: var(--text-primary);
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.chatbot-message {
    margin-bottom: 1.5rem;
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 0;
    font-weight: 300;
    line-height: 1.6;
}

.bot-message .message-content {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-left: 2px solid var(--color-gold);
}

.user-message .message-content {
    background: var(--color-black);
    color: var(--color-white);
    margin-left: auto;
    max-width: 80%;
}

.chatbot-input-container {
    padding: 1.5rem;
    border-top: var(--border-light);
    display: flex;
    gap: 1rem;
}

.chatbot-input {
    flex: 1;
    padding: 0.875rem;
    border: var(--border-light);
    font-size: 0.9375rem;
    font-weight: 300;
    font-family: var(--font-primary);
}

.chatbot-input:focus {
    outline: none;
    border-color: var(--color-gold);
}

.chatbot-send {
    width: 44px;
    height: 44px;
    background: var(--color-black);
    border: none;
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-send:hover {
    background: var(--color-gold);
    color: var(--color-black);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 5rem 2rem;
        transition: var(--transition-base);
        box-shadow: var(--shadow-large);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        padding: 2rem 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .chatbot-container {
        width: 100%;
        height: 100vh;
        bottom: 0;
        right: 0;
    }
}

/* Utility Classes */
.text-gold {
    color: var(--text-gold);
}

.bg-dark {
    background: var(--bg-dark);
    color: var(--color-white);
}

.bg-ice {
    background: var(--bg-ice);
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes goldGlow {
    0%, 100% {
        box-shadow: var(--shadow-gold);
    }
    50% {
        box-shadow: var(--shadow-gold-glow);
    }
}

.gold-glow {
    animation: goldGlow 2s ease-in-out infinite;
}