/* CSS Design System for VerveDo Landing Page - Premium & Modern */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #0F172A;
    --bg-card: #1E293B;
    --primary: #6366F1;
    --primary-gradient: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    --accent: #F59E0B;
    --accent-gradient: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --success: #10B981;
    --border-color: rgba(255, 255, 255, 0.08);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Header & Navigation */
header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FFF 30%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--primary);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
}

.nav-link:hover {
    color: var(--text-main);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

/* Hero Section */
.hero {
    padding: 10rem 2rem 6rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 5%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    filter: blur(40px);
}

.badge {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.badge-accent {
    color: var(--accent);
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.8rem;
    line-height: 1.15;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero h1 span {
    background: linear-gradient(135deg, #6366F1 0%, #A5B4FC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

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

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

/* Legal Content Screens */
.legal-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 10rem 2rem 6rem;
}

.legal-container h1 {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #FFF 30%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.legal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem;
    border-radius: 24px;
}

.legal-content h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin: 2rem 0 1rem;
    color: var(--primary);
}

.legal-content p, .legal-content li {
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.legal-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Contact Form */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 10rem 2rem 6rem;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: white;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.alert {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Footer styling */
footer {
    background: #0B0F19;
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem 2rem;
    margin-top: 6rem;
}

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

.footer-brand h4 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links h5 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    color: var(--text-main);
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

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

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Phone Mockup Showcase - Rich CSS representation of VerveDo App */
.mockup-showcase {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.phone-mockup {
    width: 320px;
    height: 600px;
    background: #0F172A;
    border: 12px solid #1E293B;
    border-radius: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 0 2px rgba(99, 102, 241, 0.3);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: float 6s ease-in-out infinite;
}

.phone-mockup:nth-child(2) {
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 25px;
    background: #1E293B;
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
    z-index: 10;
}

.phone-screen {
    flex: 1;
    padding: 2.5rem 1.2rem 1.2rem;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.phone-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: white;
}

.phone-logo span {
    color: var(--primary);
}

.phone-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.phone-section-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.phone-task-item {
    background: var(--bg-card);
    border-left: 4px solid var(--primary);
    padding: 0.7rem 0.9rem;
    border-radius: 12px;
    font-size: 0.8rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.phone-task-item.success {
    border-left-color: var(--success);
    opacity: 0.8;
}

.phone-task-item.success .phone-task-title {
    text-decoration: line-through;
    color: var(--text-muted);
}

.phone-task-title {
    font-weight: 600;
    color: white;
}

.phone-task-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.1rem;
}

.phone-matrix {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 0.5rem;
    flex: 1;
}

.matrix-quadrant {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.matrix-quadrant.q1 { border-color: rgba(239, 68, 68, 0.3); background: rgba(239, 68, 68, 0.03); }
.matrix-quadrant.q2 { border-color: rgba(99, 102, 241, 0.3); background: rgba(99, 102, 241, 0.03); }
.matrix-quadrant.q3 { border-color: rgba(245, 158, 11, 0.3); background: rgba(245, 158, 11, 0.03); }
.matrix-quadrant.q4 { border-color: rgba(16, 185, 129, 0.3); background: rgba(16, 185, 129, 0.03); }

.matrix-label {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

.phone-pomodoro {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(0,0,0,0) 80%);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-align: center;
}

.pomo-time {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: white;
    letter-spacing: 0.05em;
    margin: 0.5rem 0;
}

.pomo-btn {
    background: var(--primary-gradient);
    padding: 0.4rem 1.2rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 700;
}

/* Workflow Step Section */
.workflow-section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 4rem;
}

.step-row {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.step-row:nth-child(even) {
    flex-direction: row-reverse;
}

.step-info {
    flex: 1;
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1rem;
}

.step-info h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

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

.step-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Responsive layout */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero h1 {
        font-size: 2.6rem;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .step-row, .step-row:nth-child(even) {
        flex-direction: column;
        gap: 2rem;
    }
}

/* Language Switcher style */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}
.lang-btn {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--text-muted);
}
.lang-btn.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}
.lang-btn:hover {
    color: var(--text-main);
}