/* Base Theme & Variables (Light Theme Default) */
:root {
    --bg-color: #f5f7fa;
    --bg-secondary: #ffffff;
    --text-primary: #16161a;
    --text-secondary: #4a4a55;
    --accent-purple: #9C27B0;
    --accent-purple-glow: rgba(156, 39, 176, 0.2);
    --accent-green: #20B2AA;
    --accent-green-glow: rgba(32, 178, 170, 0.2);
    --surface: rgba(0, 0, 0, 0.03);
    --surface-border: rgba(0, 0, 0, 0.08);
}

/* Dark Theme overrides */
[data-theme="dark"] {
    --bg-color: #0d0d0f;
    --bg-secondary: #16161a;
    --text-primary: #f5f7fa;
    --text-secondary: #a0a0ab;
    --accent-purple: #E040FB;
    --accent-purple-glow: rgba(224, 64, 251, 0.4);
    --accent-green: #39D98A;
    --accent-green-glow: rgba(57, 217, 138, 0.4);
    --surface: rgba(255, 255, 255, 0.03);
    --surface-border: rgba(255, 255, 255, 0.08);
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

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

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    font-weight: 800;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-purple), #9C27B0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-green {
    background: linear-gradient(135deg, var(--accent-green), #20B2AA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: var(--bg-color);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--surface-border);
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 900;
    font-size: 24px;
    letter-spacing: -0.5px;
}

.logo-icon {
    color: var(--accent-green);
}

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

.nav-links a:not(.btn-primary-small) {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

/* Buttons */
.btn-primary, .btn-primary-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-purple);
    color: white;
    font-weight: 600;
    border-radius: 100px;
    transition: all 0.3s ease;
}

.btn-primary {
    padding: 16px 32px;
    font-size: 16px;
    box-shadow: 0 8px 24px var(--accent-purple-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px var(--accent-purple-glow);
    background: #ea6cff;
}

.btn-primary-small {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-primary-small:hover {
    background: #ea6cff;
}

.theme-toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    color: var(--text-primary);
    background: var(--surface);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 100px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--surface-border);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-glow-1 {
    position: absolute;
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(224, 64, 251, 0.15) 0%, transparent 70%);
    z-index: -1;
}

.hero-glow-2 {
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(57, 217, 138, 0.1) 0%, transparent 70%);
    z-index: -1;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

.hero-title {
    font-size: 64px;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--surface-border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 24px;
    font-weight: 900;
    color: var(--text-primary);
}

.stat-text {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Mockup Image */
.hero-image-wrapper {
    position: relative;
    perspective: 1000px;
}

.mockup-container {
    position: relative;
    transform: rotateY(-15deg) rotateX(5deg);
    animation: float 6s ease-in-out infinite;
}

.mockup-img {
    width: 100%;
    max-width: 400px;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}

@keyframes float {
    0% { transform: rotateY(-15deg) rotateX(5deg) translateY(0px); }
    50% { transform: rotateY(-15deg) rotateX(5deg) translateY(-20px); }
    100% { transform: rotateY(-15deg) rotateX(5deg) translateY(0px); }
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-header h2 {
    font-size: 40px;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 18px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-color);
    border: 1px solid var(--surface-border);
    border-radius: 24px;
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-purple);
}

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon-wrapper.purple {
    background: rgba(224, 64, 251, 0.1);
    color: var(--accent-purple);
}

.feature-icon-wrapper.green {
    background: rgba(57, 217, 138, 0.1);
    color: var(--accent-green);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* TemPo+ Section */
.tempo-plus {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.plus-container {
    position: relative;
    z-index: 2;
}

.plus-content {
    background: linear-gradient(180deg, var(--surface) 0%, rgba(255,255,255,0) 100%);
    border: 1px solid var(--surface-border);
    border-radius: 32px;
    padding: 64px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.plus-content::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 32px;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.1);
    pointer-events: none;
}

.plus-icon {
    width: 80px;
    height: 80px;
    background: rgba(224, 64, 251, 0.1);
    border: 2px solid rgba(224, 64, 251, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--accent-purple);
}

.plus-icon svg {
    width: 40px;
    height: 40px;
}

.plus-content h2 {
    font-size: 48px;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.plus-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.plus-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
    list-style: none;
}

.plus-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.plus-benefits li svg {
    color: var(--accent-purple);
    width: 20px;
    height: 20px;
}

/* Download Section */
.download {
    padding: 100px 0;
    text-align: center;
    background: var(--bg-secondary);
}

.download h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.download p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #000;
    color: #ffffff;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 12px 24px;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.store-btn:hover:not(.disabled) {
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

.store-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.store-btn svg {
    width: 32px;
    height: 32px;
}

.store-text {
    text-align: left;
}

.store-text span {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.store-text strong {
    display: block;
    font-size: 20px;
    font-weight: 600;
}

/* Footer */
footer {
    border-top: 1px solid var(--surface-border);
    padding: 60px 0 30px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 12px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--surface-border);
    padding-top: 30px;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        margin: 0 auto 40px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .mockup-container {
        transform: none;
        animation: none;
        margin-top: 40px;
    }
    
    .plus-benefits {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 32px;
        text-align: center;
        align-items: center;
    }
}