/**
 * Vanarchain Clone - Light Theme Styles
 * A clean, modern white theme design system
 */

/* ==========================================
   CSS Custom Properties (Variables)
   ========================================== */
:root {
    --vanar-white: #ffffff;
    --vanar-light: #fafafa;
    --vanar-gray: #f5f5f5;
    --vanar-border: #e5e5e5;
    --vanar-text: #282B35;
    --vanar-text-muted: #282B35;
    --vanar-accent: #282B35;
    --vanar-purple: #282B35;
    --vanar-pink: #282B35;
    --vanar-blue: #282B35;
    --vanar-cyan: #282B35;
    --vanar-teal: #282B35;
    --vanar-green: #282B35;

    --gradient-primary: linear-gradient(90deg, #282B35 0%, #282B35 100%);
    --gradient-secondary: linear-gradient(90deg, #282B35 0%, #282B35 100%);

    --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);
}

/* ==========================================
   Base Styles
   ========================================== */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--vanar-white);
    color: var(--vanar-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==========================================
   Typography
   ========================================== */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-blue {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   Card Styles
   ========================================== */
.card-light {
    background: var(--vanar-white);
    border: 1px solid var(--vanar-border);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.feature-card {
    position: relative;
    background: var(--vanar-white);
    border: 1px solid var(--vanar-border);
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: transparent;
    box-shadow: 0 0 0 2px rgba(0, 194, 255, 0.3), var(--shadow-lg);
}

/* ==========================================
   Button Styles
   ========================================== */
.btn-primary {
    position: relative;
    background: #282B35;
    color: var(--vanar-white);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(40, 43, 53, 0.35);
    background: #1a1c24;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    position: relative;
    background: transparent;
    border: 2px solid var(--vanar-border);
    color: var(--vanar-text);
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-outline:hover {
    border-color: var(--vanar-cyan);
    color: var(--vanar-cyan);
}

/* ==========================================
   Background Effects
   ========================================== */
.hero-bg-light {
    background: linear-gradient(180deg, var(--vanar-white) 0%, var(--vanar-light) 100%);
}

.grid-pattern {
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.gradient-bg-subtle {
    background: linear-gradient(135deg,
        rgba(99, 102, 241, 0.03) 0%,
        rgba(139, 92, 246, 0.03) 50%,
        rgba(236, 72, 153, 0.03) 100%
    );
}

/* ==========================================
   Navigation
   ========================================== */
.nav-light {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav-link {
    position: relative;
    color: var(--vanar-text-muted);
    transition: color 0.3s ease;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-secondary);
    transition: width 0.3s ease;
}

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

/* ==========================================
   Number Badge
   ========================================== */
.number-badge-light {
    background: linear-gradient(135deg,
        rgba(0, 194, 255, 0.1),
        rgba(124, 58, 237, 0.1)
    );
    border: 1px solid rgba(0, 194, 255, 0.25);
}

/* ==========================================
   Section Divider
   ========================================== */
.section-divider {
    background: linear-gradient(90deg, transparent, var(--vanar-border), transparent);
    height: 1px;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes gradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse-soft {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes slide-up {
    0% {
        transform: translateY(30px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fade-in {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.animate-gradient {
    animation: gradient 8s linear infinite;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-pulse-soft {
    animation: pulse-soft 2s ease-in-out infinite;
}

.animate-slide-up {
    animation: slide-up 0.6s ease-out forwards;
}

.animate-fade-in {
    animation: fade-in 0.8s ease-out;
}

/* Partner Logo Scroll */
.logo-scroll {
    animation: scroll 30s linear infinite;
}

.logo-scroll:hover {
    animation-play-state: paused;
}

/* ==========================================
   Scrollbar
   ========================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--vanar-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--vanar-accent), var(--vanar-purple));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--vanar-purple), var(--vanar-pink));
}

/* ==========================================
   Form Elements
   ========================================== */
input[type="email"],
input[type="text"] {
    background: var(--vanar-white);
    border: 1px solid var(--vanar-border);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type="email"]:focus,
input[type="text"]:focus {
    outline: none;
    border-color: var(--vanar-cyan);
    box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.1);
}

/* ==========================================
   Utility Classes
   ========================================== */
.shadow-soft {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.shadow-accent {
    box-shadow: 0 10px 30px rgba(0, 194, 255, 0.15);
}

.border-gradient {
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                var(--gradient-primary) border-box;
}

/* ==========================================
   Hover Effects
   ========================================== */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.hover-scale {
    transition: transform 0.3s ease;
}

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

/* ==========================================
   Responsive Adjustments
   ========================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: clamp(2.5rem, 8vw, 4rem);
    }

    .grid-pattern {
        background-size: 30px 30px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .logo-scroll {
        animation: none;
    }
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
    .nav-light,
    .logo-scroll,
    .btn-primary,
    .btn-outline {
        background: none;
        box-shadow: none;
    }

    .gradient-text {
        -webkit-text-fill-color: var(--vanar-cyan);
        background: none;
    }
}