/* style.css */
:root {
    /* Light Theme (Fallback, but UI is dark-focused) */
    --bg-color: #f0f4f8;
    --bg-alt: #ffffff;
    --text-color: #1a1a24;
    --text-muted: #666677;
    --primary-color: #00b8d4;
    --primary-hover: #009eb5;
    --card-bg: rgba(255, 255, 255, 0.7);
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    --header-bg: rgba(255, 255, 255, 0.8);
    --glow: 0 0 15px rgba(0, 184, 212, 0.3);
}

[data-theme="dark"] {
    /* Dark Theme - Aerodynamic Dark Minimalism */
    --bg-color: #0a0a0c;
    --bg-alt: #121216;
    --text-color: #e0e4e8;
    --text-muted: #8a8d9b;
    --primary-color: #00f0ff; /* Electric Cyan / Neon Wind-trail */
    --primary-hover: #33f3ff;
    --card-bg: rgba(20, 20, 26, 0.6); /* Glassmorphic */
    --border-color: rgba(0, 240, 255, 0.15);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --header-bg: rgba(10, 10, 12, 0.7);
    --glow: 0 0 20px rgba(0, 240, 255, 0.4);
}

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

@keyframes pageFadeIn {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: translateY(0); }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.5s ease, color 0.5s ease;
    scroll-behavior: smooth;
    overflow-x: hidden;
    animation: pageFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Background Wind Effect (Subtle CSS representation) */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 50% 0%, rgba(0, 240, 255, 0.05), transparent 70%);
    pointer-events: none;
    z-index: -1;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color 0.5s;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: var(--glow);
}
.logo a {
    color: inherit;
    text-decoration: none;
}

nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.2rem 0;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
    box-shadow: var(--glow);
}

nav a:hover {
    color: var(--primary-color);
}
nav a:hover::after {
    width: 100%;
}

.actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #0a0a0c;
    border: none;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* Sections */
main {
    margin-top: 70px;
    min-height: calc(100vh - 200px);
}

.section {
    padding: 6rem 5%;
    scroll-margin-top: 70px;
}

.bg-alt {
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3.5rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Hero */
.hero {
    text-align: center;
    padding: 10rem 5% 8rem;
    background: radial-gradient(ellipse at top, var(--bg-alt), transparent 70%);
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, #fff 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

[data-theme="light"] .hero h1 {
    background: linear-gradient(135deg, #111 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Grids */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
}

/* Cards (Glassmorphic + 3D Tilt illusion) */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.4s, box-shadow 0.4s;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.card:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-10px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 240, 255, 0.2);
}

.card .icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: var(--glow);
    display: inline-block;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.card p {
    color: var(--text-muted);
}

/* Pricing Matrix */
.pricing-card {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pricing-card.popular {
    border: 1px solid var(--primary-color);
    box-shadow: var(--glow);
    transform: scale(1.05);
}
.pricing-card.popular:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-10px) scale(1.05);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: #0a0a0c;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 800;
    box-shadow: var(--glow);
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1.5rem 0;
    color: var(--text-color);
}

.price span {
    font-size: 1.2rem;
    color: var(--text-muted);
    font-weight: 500;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.pricing-card ul li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
}
[data-theme="light"] .pricing-card ul li {
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.pricing-card ul li:last-child { border-bottom: none; }

/* FAQ & Reviews */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item, .review-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    margin-bottom: 1.5rem;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}
.faq-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}
.review-card .stars { margin-bottom: 1rem; font-size: 1.2rem; }
.review-card p { font-style: italic; margin-bottom: 1rem; color: var(--text-color); }
.review-card .user { font-weight: bold; text-align: right; color: var(--primary-color); }

/* Subpages */
.subpage-main {
    padding: 100px 5% 60px;
    max-width: 800px;
    margin: 0 auto;
}
.subpage-main h1 { font-size: 2.2rem; margin-bottom: 2rem; color: var(--primary-color); border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; }
.subpage-main h2 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 1rem; color: var(--text-color); }
.subpage-main p, .subpage-main ul { margin-bottom: 1rem; color: var(--text-color); }
.subpage-main ul { padding-left: 1.5rem; }
.subpage-main li { margin-bottom: 0.5rem; }

/* Footer */
footer {
    background-color: var(--bg-alt);
    padding: 4rem 5% 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--primary-color); }
.copyright { color: var(--text-muted); font-size: 0.9rem; }

/* Mobile */
@media (max-width: 768px) {
    header { padding: 1rem; }
    nav { 
        display: flex; 
        flex-wrap: wrap; 
        justify-content: center; 
        gap: 0.8rem; 
        margin-top: 1rem; 
    }
    .actions { margin-top: 1rem; width: 100%; justify-content: center; }
    .hero { padding-top: 8rem; }
    .hero h1 { font-size: 2.5rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .pricing-card.popular { transform: scale(1); }
    .pricing-card.popular:hover { transform: translateY(-5px); }
    .btn { width: 100%; box-sizing: border-box; }
}

/* Morphing SVG Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    padding: 8px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

.sun-and-moon { width: 24px; height: 24px; }
.sun-and-moon > :is(.moon, .sun, .sun-beams) { transform-origin: center center; }
.sun-and-moon > .sun { fill: currentColor; transition: transform 0.5s cubic-bezier(.5, -0.5, .5, 1.5); }
.sun-and-moon > .sun-beams { stroke-width: 2px; transition: transform 0.5s cubic-bezier(.5, -0.5, .5, 1.5), opacity 0.5s cubic-bezier(.25, 0, .3, 1); }
.sun-and-moon > .moon > circle { transition: transform 0.25s cubic-bezier(0, 0, 0, 1); }

[data-theme="dark"] .sun-and-moon > .sun { transform: scale(1.75); transition-timing-function: cubic-bezier(.25, 0, .3, 1); transition-duration: 0.25s; }
[data-theme="dark"] .sun-and-moon > .sun-beams { opacity: 0; transform: rotateZ(-25deg); transition-duration: 0.15s; }
[data-theme="dark"] .sun-and-moon > .moon > circle { transform: translateX(-7px); transition: transform 0.5s cubic-bezier(0, 0, 0, 1); transition-delay: 0.1s; }