/* HeartHealthier Shared Styles */

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

:root {
    --primary: #FF3366;
    --primary-dark: #E6295C;
    --secondary: #6C5CE7;
    --accent: #00D9FF;
    --gradient-start: #FF3366;
    --gradient-mid: #FF6B6B;
    --gradient-end: #6C5CE7;
    --dark: #1A1A2E;
    --light: #FFFFFF;
    --gray: #8892B0;
}

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

.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(255, 51, 102, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(108, 92, 231, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 70%);
    z-index: -1;
}

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

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    padding: 24px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    background: rgba(26, 26, 46, 0.8);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--light);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

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

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

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white !important;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 51, 102, 0.4);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 51, 102, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

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

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 500px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

/* Phone Mockup */
.phone-mockup {
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.phone-frame {
    background: linear-gradient(135deg, #2D2D44 0%, #1A1A2E 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 50px 100px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.phone-screen {
    background: linear-gradient(180deg, #1E1E32 0%, #252542 100%);
    border-radius: 32px;
    padding: 24px;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.screen-header {
    text-align: center;
    margin-bottom: 24px;
}

.screen-header h3 {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 8px;
}

.screen-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.progress-ring {
    width: 180px;
    height: 180px;
    margin: 0 auto 24px;
    position: relative;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring circle {
    fill: none;
    stroke-width: 12;
}

.progress-bg {
    stroke: rgba(255, 255, 255, 0.1);
}

.progress-fill {
    stroke: url(#gradient);
    stroke-linecap: round;
    stroke-dasharray: 440;
    stroke-dashoffset: 110;
    animation: progress 2s ease-out forwards;
}

@keyframes progress {
    from {
        stroke-dashoffset: 440;
    }
    to {
        stroke-dashoffset: 110;
    }
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-text .value {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.progress-text .label {
    font-size: 0.75rem;
    color: var(--gray);
}

.stats-row {
    display: flex;
    justify-content: space-around;
    margin-top: auto;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 120px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 32px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 51, 102, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

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

/* How It Works */
.how-it-works {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.02);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.step p {
    color: var(--gray);
}

/* Beta CTA */
.beta-cta {
    padding: 120px 0;
}

.cta-card {
    background: linear-gradient(135deg, rgba(255, 51, 102, 0.1), rgba(108, 92, 231, 0.1));
    border: 1px solid rgba(255, 51, 102, 0.2);
    border-radius: 32px;
    padding: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.beta-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-card h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-card p {
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

footer p {
    color: var(--gray);
    font-size: 0.875rem;
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Page Header (FAQ) */
.page-header {
    text-align: center;
    margin-bottom: 60px;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.page-header p {
    color: var(--gray);
    font-size: 1.125rem;
}

/* FAQ Sections */
.faq-section {
    margin-bottom: 48px;
}

.faq-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(255, 51, 102, 0.3);
}

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    padding: 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.open .faq-answer {
    max-height: 1000px;
}

.faq-answer-content {
    padding: 0 24px 24px;
    color: var(--gray);
    line-height: 1.8;
}

.faq-answer-content p {
    margin-bottom: 16px;
}

.faq-answer-content p:last-child {
    margin-bottom: 0;
}

.faq-answer-content ul {
    margin: 16px 0;
    padding-left: 24px;
}

.faq-answer-content li {
    margin-bottom: 8px;
}

.faq-answer-content strong {
    color: var(--light);
}

.highlight-box {
    background: rgba(255, 51, 102, 0.1);
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 16px 0;
}

.highlight-box p {
    margin: 0;
    color: var(--light);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-table th {
    color: var(--light);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
}

.data-table td {
    color: var(--gray);
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-local {
    background: rgba(0, 217, 255, 0.2);
    color: var(--accent);
}

.badge-server {
    background: rgba(108, 92, 231, 0.2);
    color: var(--secondary);
}

.badge-never {
    background: rgba(0, 200, 83, 0.2);
    color: #00C853;
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive */
@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;
    }

    .phone-mockup {
        max-width: 280px;
    }
}

@media (max-width: 640px) {
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary, .btn-secondary {
        text-align: center;
        justify-content: center;
    }

    .cta-card {
        padding: 40px 24px;
    }

    .logo {
        font-size: 1rem;
        gap: 8px;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
        border-radius: 8px;
    }

    .nav-links {
        flex-shrink: 0;
        gap: 16px;
    }

    .nav-links a {
        color: var(--light);
    }

    .nav-cta {
        display: none;
    }

    .faq-question {
        font-size: 1rem;
        padding: 20px;
    }

    .faq-answer-content {
        padding: 0 20px 20px;
    }
}