/* =========================================
   VARIABLES & THEMING
   (Matching v2.5.0 Premium UI)
   ========================================= */
   :root {
    --primary: #6366f1; /* Indigo 500 */
    --primary-hover: #4f46e5;
    --primary-light: #e0e7ff;
    
    --secondary: #8b5cf6; /* Violet 500 */
    
    --bg-main: #f8fafc; /* Slate 50 */
    --bg-card: #ffffff;
    
    --text-main: #0f172a; /* Slate 900 */
    --text-muted: #6b7280; /* Gray 500 - Updated from v2.5.0 */
    --text-secondary: #4b5563; /* Gray 600 - Updated from v2.5.0 */
    
    /* V2.5.0 Soft Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.05); /* The Premium Float */
    
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* =========================================
   BASE RESET
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

a { text-decoration: none; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================
   TYPOGRAPHY
   ========================================= */
h1, h2, h3, h4 {
    color: var(--text-main);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 1.5rem; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* =========================================
   COMPONENTS
   ========================================= */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background-color: white;
    color: var(--text-main);
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background-color: #f1f5f9;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary-light);
}

/* =========================================
   NAVIGATION (Glassmorphism)
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

/* =========================================
   HERO SECTION (Pastel Header Gradient)
   ========================================= */
.hero {
    position: relative;
    padding: 8rem 0 6rem;
    overflow: hidden;
    background: linear-gradient(135deg, #e0e7ff 0%, #ede9fe 30%, #fef2f2 70%, #dbeafe 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: white;
    color: var(--primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.no-cc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* App Mockup UI */
.hero-image {
    perspective: 1000px;
}

.glass-mockup {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.glass-mockup:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.mockup-header {
    background: linear-gradient(135deg, #e0e7ff, #ede9fe);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: -1.5rem;
}

.mockup-greeting {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-main);
}

.mockup-weather {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin: 0 1rem 1.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    position: relative;
    z-index: 2;
}

.mockup-pills {
    display: flex;
    gap: 0.5rem;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.pill {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.mockup-list {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 4rem; /* space for nav */
}

.mockup-list h4 { margin-bottom: 1rem; }

.mockup-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f5f9;
}
.mockup-item:last-child { border: none; }
.mockup-item input[type="checkbox"] { width: 1.2rem; height: 1.2rem; accent-color: var(--primary); }

.mockup-bottom-nav {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    border-radius: 50px;
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
}

.mockup-bottom-nav .nav-item { color: var(--text-muted); }
.mockup-bottom-nav .nav-item.active { color: var(--primary); }

/* =========================================
   FEATURES
   ========================================= */
.features {
    padding: 6rem 0;
    background: white;
}

.section-title {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

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

.feature-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--bg-main);
    transition: transform 0.3s;
    border: 1px solid #f1f5f9;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: white;
    box-shadow: var(--shadow-lg);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.icon-wrapper.blue { background: #dbeafe; color: #3b82f6; }
.icon-wrapper.purple { background: #ede9fe; color: #8b5cf6; }
.icon-wrapper.green { background: #dcfce3; color: #22c55e; }
.icon-wrapper.orange { background: #ffedd5; color: #f97316; }

/* =========================================
   PRICING
   ========================================= */
.pricing {
    padding: 6rem 0;
    background: var(--bg-main);
}

.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    font-weight: 500;
}

/* Switch Styles */
.switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #cbd5e1; transition: .4s; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: var(--primary); }
input:checked + .slider:before { transform: translateX(22px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

.save-badge {
    background: #dcfce3;
    color: #166534;
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    font-size: 0.75rem;
    margin-left: 0.5rem;
    font-weight: 700;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    border: 1px solid #e2e8f0;
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 1rem 0;
    display: flex;
    align-items: baseline;
}

.currency { font-size: 1.5rem; font-weight: 600; margin-right: 0.2rem; }
.period { font-size: 1rem; color: var(--text-muted); font-weight: 500; margin-left: 0.2rem; }

.plan-desc {
    margin-bottom: 2rem;
    min-height: 50px;
}

.feature-list {
    margin-bottom: 2.5rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.feature-list li i {
    color: var(--primary);
    width: 20px;
}

.feature-list li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.feature-list li.disabled i {
    color: #cbd5e1;
}

.crypto-note {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}
.crypto-note i { width: 14px; }

/* =========================================
   FOOTER
   ========================================= */
.footer {
    background: white;
    padding: 4rem 0 2rem;
    border-top: 1px solid #e2e8f0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.link-group h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.link-group a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.link-group a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding-top: 2rem;
    border-top: 1px solid #f1f5f9;
}

/* =========================================
   MEDIA QUERIES (Responsiveness)
   ========================================= */
@media (max-width: 1024px) {
    h1 { font-size: clamp(2rem, 5vw, 3rem); }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        align-items: center;
        margin: 0 auto;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    .footer-content {
        flex-direction: column;
    }
}