/* ========================================
   GusPad Soundboard - Main Styles
   Version: 1.6
   ======================================== */

/* CSS Variables */
:root {
    --primary-blue: #3873D9;
    --primary-red: #D93838;
    --primary-green: #38D938;
    --secondary-yellow: #F2D938;
    --secondary-orange: #D97338;
    --secondary-violet: #7338D9;
    --secondary-cyan: #38D9D9;
    --secondary-magenta: #D938D9;
    --dark-bg: #0a0a0a;
    --dark-surface: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   Header
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 2rem;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.lang-switch {
    background: var(--dark-surface);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(56, 115, 217, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(217, 56, 217, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
    max-width: 1200px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-text h1 span {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan), var(--secondary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-violet));
    color: white;
    box-shadow: 0 10px 30px rgba(56, 115, 217, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(56, 115, 217, 0.4);
}

.btn-secondary {
    background: var(--dark-surface);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    border-color: var(--primary-blue);
    background: rgba(56, 115, 217, 0.1);
}

/* ========================================
   Phone Mockup
   ======================================== */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

/* Image mockup style */
.phone-mockup-img {
    width: 280px;
    height: 580px;
    object-fit: contain;
    filter: drop-shadow(0 50px 100px rgba(0, 0, 0, 0.5));
    transition: transform 0.3s ease;
}

.phone-mockup-img:hover {
    transform: scale(1.02);
}

.phone-mockup {
    width: 280px;
    height: 580px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-notch {
    width: 120px;
    height: 30px;
    background: #000;
    border-radius: 0 0 20px 20px;
    margin: 0 auto;
}

.phone-content {
    flex: 1;
    padding: 10px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}

.demo-pad {
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding: 4px;
    transition: all 0.2s;
    cursor: pointer;
    animation: padPulse 2s ease-in-out infinite;
}

.demo-pad:nth-child(1) { background: var(--primary-blue); animation-delay: 0s; }
.demo-pad:nth-child(2) { background: var(--primary-red); animation-delay: 0.1s; }
.demo-pad:nth-child(3) { background: var(--primary-green); animation-delay: 0.2s; }
.demo-pad:nth-child(4) { background: var(--secondary-yellow); animation-delay: 0.3s; }
.demo-pad:nth-child(5) { background: var(--secondary-orange); animation-delay: 0.4s; }
.demo-pad:nth-child(6) { background: var(--secondary-violet); animation-delay: 0.5s; }
.demo-pad:nth-child(7) { background: var(--secondary-cyan); animation-delay: 0.6s; }
.demo-pad:nth-child(8) { background: var(--secondary-magenta); animation-delay: 0.7s; }
.demo-pad:nth-child(9) { background: var(--primary-blue); animation-delay: 0.8s; }
.demo-pad:nth-child(10) { background: var(--primary-red); animation-delay: 0.9s; }
.demo-pad:nth-child(11) { background: var(--primary-green); animation-delay: 1s; }
.demo-pad:nth-child(12) { background: var(--secondary-yellow); animation-delay: 1.1s; }

@keyframes padPulse {
    0%, 100% { transform: scale(1); opacity: 0.85; }
    50% { transform: scale(0.95); opacity: 1; }
}

.demo-pad:hover {
    transform: scale(1.1) !important;
    opacity: 1 !important;
}

/* ========================================
   Features Section
   ======================================== */
.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--dark-surface);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 115, 217, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card:nth-child(1) .feature-icon { background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan)); }
.feature-card:nth-child(2) .feature-icon { background: linear-gradient(135deg, var(--primary-red), var(--secondary-orange)); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, var(--primary-green), var(--secondary-cyan)); }
.feature-card:nth-child(4) .feature-icon { background: linear-gradient(135deg, var(--secondary-violet), var(--secondary-magenta)); }
.feature-card:nth-child(5) .feature-icon { background: linear-gradient(135deg, var(--secondary-yellow), var(--secondary-orange)); }
.feature-card:nth-child(6) .feature-icon { background: linear-gradient(135deg, var(--secondary-magenta), var(--primary-red)); }
.feature-card:nth-child(7) .feature-icon { background: linear-gradient(135deg, var(--secondary-cyan), var(--primary-blue)); }

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-surface) 50%, var(--dark-bg) 100%);
}

.pricing-container {
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: var(--dark-surface);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    border: 2px solid var(--primary-blue);
    transform: scale(1.05);
}

.pricing-card.featured::before {
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-violet));
    color: white;
    padding: 0.5rem 3rem;
    font-size: 0.7rem;
    font-weight: 600;
    transform: rotate(45deg);
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 800;
    margin: 1.5rem 0;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-card ul {
    list-style: none;
    margin: 2rem 0;
}

.pricing-card ul li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.pricing-card ul li::before {
    content: '✓';
    color: var(--primary-green);
    font-weight: bold;
}

.pricing-card ul li.disabled {
    opacity: 0.4;
}

.pricing-card ul li.disabled::before {
    content: '✗';
    color: var(--primary-red);
}

/* ========================================
   Sounds Preview Section
   ======================================== */
.sounds-preview {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.sounds-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 3rem;
}

.sound-tag {
    background: var(--dark-surface);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.sound-tag:hover {
    background: var(--primary-blue);
    transform: scale(1.05);
}

/* ========================================
   Footer
   ======================================== */
footer {
    background: var(--dark-surface);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   App Store Badge
   ======================================== */
.app-store-badge {
    height: 50px;
    transition: transform 0.3s;
}

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

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .nav-links {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .phone-mockup,
    .phone-mockup-img {
        width: 240px;
        height: 500px;
    }
    
    .section-title {
        font-size: 2rem;
    }
}