/*
 * Bitway.in Landing Page Styles
 * Modern, Professional Cryptocurrency Payment Gateway
 */

/* ========== ROOT VARIABLES ========== */
:root {
    --primary-color: #55B475;
    --primary-dark: #3d9358;
    --primary-light: #6bc587;
    --secondary-color: #FFB428;
    --accent-color: #2BB0BA;
    --dark: #1F3F3B;
    --dark-light: #2d5550;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e1e4e8;
    --shadow-sm: 0 2px 8px rgba(31, 63, 59, 0.08);
    --shadow-md: 0 4px 16px rgba(31, 63, 59, 0.12);
    --shadow-lg: 0 8px 32px rgba(31, 63, 59, 0.16);
    --shadow-xl: 0 16px 48px rgba(31, 63, 59, 0.2);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --border-radius-lg: 16px;
}

/* ========== GLOBAL STYLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== BUTTONS ========== */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--dark);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:not(.btn-primary):hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 28px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(85, 180, 117, 0.1) 0%, transparent 70%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Crypto Card in Hero */
.crypto-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.crypto-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.crypto-icon {
    width: 48px;
    height: 48px;
}

.crypto-card-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.crypto-card-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.crypto-amount {
    margin-bottom: 24px;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark);
}

.currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-left: 8px;
}

.crypto-address {
    background: var(--bg-light);
    padding: 16px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.crypto-address small {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.crypto-address code {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 1rem;
    color: var(--dark);
}

.status-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.status-pending {
    background: rgba(255, 180, 40, 0.15);
    color: #d48806;
}

/* ========== SECTIONS ========== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== FEATURES ========== */
.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.375rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== HOW IT WORKS ========== */
.how-it-works {
    background: var(--bg-light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 80px;
}

.step {
    text-align: center;
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
}

.step-content h3 {
    margin-bottom: 12px;
    font-size: 1.5rem;
}

.step-content p {
    color: var(--text-secondary);
}

/* Code Example */
.code-example {
    background: #1e1e1e;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: #2d2d2d;
    border-bottom: 1px solid #3d3d3d;
}

.code-title {
    color: #fff;
    font-weight: 600;
}

.code-tabs {
    display: flex;
    gap: 8px;
}

.code-tab {
    background: none;
    border: none;
    color: #999;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.code-tab.active {
    background: #3d3d3d;
    color: var(--primary-color);
}

.code-block {
    padding: 32px;
    overflow-x: auto;
}

.code-block code {
    color: #d4d4d4;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ========== SUPPORTED CRYPTO ========== */
.supported-crypto {
    background: white;
}

.crypto-list {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.crypto-item {
    text-align: center;
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--border-color);
    min-width: 200px;
    transition: var(--transition);
}

.crypto-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.crypto-item.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(85, 180, 117, 0.05), rgba(255, 180, 40, 0.05));
}

.crypto-logo {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
}

.crypto-name {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--dark);
}

.badge {
    display: inline-block;
    margin-top: 8px;
    padding: 4px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ========== PRICING ========== */
.pricing {
    background: var(--bg-light);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pricing-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 40px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 32px;
    text-align: center;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.price {
    margin-top: 16px;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
}

.price-period {
    display: block;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* ========== CONTACT ========== */
.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    margin-bottom: 4px;
    color: var(--dark);
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--border-radius-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    max-width: 300px;
}

.footer-logo {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.125rem;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--primary-color);
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-image {
        order: -1;
    }

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

    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .crypto-list {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }

    .container {
        padding: 0 16px;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }

    .crypto-card {
        padding: 24px;
    }

    .amount {
        font-size: 2rem;
    }
}