/* ============================================
   PROXIMA - Modern iOS App Static Website
   ============================================ */

/* CSS Variables */
:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --secondary-color: #06b6d4;
    --accent-color: #ec4899;
    
    --bg-dark: #0f172a;
    --bg-darker: #0a0f1e;
    --bg-light: #1e293b;
    --bg-lighter: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.navbar-container {
    max-width: 1024px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition-fast);
    cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* Responsive Navigation */
@media (max-width: 640px) {
    .navbar-menu {
        gap: var(--spacing-lg);
    }

    .nav-link {
        font-size: 13px;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    animation: floatBg 15s ease-in-out infinite;
    z-index: 0;
}

@keyframes floatBg {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(30px, -30px);
    }
}

@media (prefers-reduced-motion: no-preference) {
    .hero::before {
        animation: floatBg 15s ease-in-out infinite;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 4vw, 24px);
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto var(--spacing-2xl);
    line-height: 1.4;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.animated-bg {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(180deg, transparent 0%, rgba(79, 70, 229, 0.05) 100%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-fast);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0);
    transition: background 0.3s;
}

.btn:hover::before {
    background: rgba(255, 255, 255, 0.1);
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(148, 163, 184, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    gap: var(--spacing-xs);
}

.btn-copy {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(79, 70, 229, 0.3);
}

.btn-copy:hover {
    background: rgba(79, 70, 229, 0.2);
    border-color: var(--primary-color);
}

.btn-copy.copied {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border-color: rgba(34, 197, 94, 0.3);
}

.btn-copy svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   HERO SMALL (Privacy/Support Pages)
   ============================================ */

.hero-small {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(6, 182, 212, 0.05));
    border-bottom: 1px solid var(--border-color);
}

.hero-small h1 {
    font-size: clamp(32px, 6vw, 48px);
    margin-bottom: var(--spacing-md);
    animation: slideUp 0.8s ease-out;
}

.hero-small .subtitle {
    color: var(--text-muted);
    animation: slideUp 0.8s ease-out 0.1s both;
}

/* ============================================
   SECTIONS
   ============================================ */

.info-section,
.content-section,
.faq-section,
.support-section {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.info-section h2,
.content-section h2,
.faq-section h2,
.support-section h2 {
    font-size: clamp(28px, 5vw, 36px);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: var(--spacing-xl);
}

/* Reveal Animation */
.reveal-section {
    opacity: 0;
    transform: translateY(30px);
}

.reveal-section.revealed {
    animation: revealSection 0.6s ease-out forwards;
}

@keyframes revealSection {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   CARDS & GRIDS
   ============================================ */

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.info-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition);
    cursor: pointer;
}

.info-card:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(79, 70, 229, 0.3);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.1);
}

.info-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.15), rgba(6, 182, 212, 0.15));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.info-card h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.info-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
}

.learn-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.learn-more:hover {
    gap: var(--spacing-sm);
}

.learn-more:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ============================================
   SUMMARY CARD
   ============================================ */

.summary-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.summary-card h2 {
    margin-bottom: var(--spacing-xl);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.summary-label {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.summary-value {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

/* ============================================
   POLICY CONTENT
   ============================================ */

.policy-content {
    max-width: 800px;
}

.policy-section {
    margin-bottom: var(--spacing-2xl);
}

.policy-section h2 {
    font-size: 24px;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.policy-section p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.policy-section ol,
.policy-section ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.policy-section li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.contact-box {
    background: rgba(30, 41, 59, 0.6);
    border-left: 3px solid var(--primary-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.contact-box p {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   CONTACT CARD
   ============================================ */

.contact-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.contact-card h2 {
    margin-bottom: var(--spacing-md);
}

.contact-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.email-display {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(79, 70, 229, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.email-text {
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 14px;
}

.response-note {
    color: var(--text-muted);
    font-size: 13px;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.form-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.form-card h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 20px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    background: rgba(100, 116, 139, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(100, 116, 139, 0.15);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-message {
    padding: var(--spacing-md);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-md);
    color: #86efac;
    font-size: 14px;
    animation: slideUp 0.3s ease-out;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.form-note {
    color: var(--text-muted);
    font-size: 13px;
    font-style: italic;
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-item {
    margin-bottom: var(--spacing-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.faq-question:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(79, 70, 229, 0.3);
}

.faq-question:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.faq-question span {
    flex: 1;
}

.faq-icon {
    color: var(--primary-color);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-question.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: var(--spacing-lg);
    background: rgba(100, 116, 139, 0.05);
    color: var(--text-secondary);
    animation: slideDown 0.3s ease-out;
}

.faq-answer.active {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faq-answer ol,
.faq-answer ul {
    margin-left: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.faq-answer li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.faq-answer p {
    margin-bottom: var(--spacing-md);
}

.faq-answer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* ============================================
   BUG REPORT & REFUNDS
   ============================================ */

.support-section h2 {
    font-size: 24px;
    margin-bottom: var(--spacing-lg);
}

.support-section p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.support-section ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.support-section li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.bug-checklist {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.bug-checklist h3 {
    margin-bottom: var(--spacing-md);
}

.bug-checklist ul {
    margin-left: var(--spacing-lg);
}

.bug-checklist li {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: rgba(10, 15, 30, 0.8);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-top: auto;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 50;
}

.back-to-top::before {
    content: '';
    width: 8px;
    height: 8px;
    border-top: 2px solid white;
    border-right: 2px solid white;
    transform: rotate(-45deg);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.back-to-top:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* ============================================
   TOAST NOTIFICATION
   ============================================ */

.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 101;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    pointer-events: none;
}

.toast {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    pointer-events: all;
    animation: toastSlideIn 0.3s ease-out;
}

.toast.success {
    border-color: rgba(34, 197, 94, 0.3);
    background: rgba(30, 41, 59, 0.95);
    color: #86efac;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toastSlideOut {
    to {
        opacity: 0;
        transform: translateY(20px);
    }
}

.toast.removing {
    animation: toastSlideOut 0.3s ease-in forwards;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-xl) var(--spacing-md);
        min-height: auto;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .navbar-container {
        padding: var(--spacing-md);
    }

    .navbar-menu {
        gap: var(--spacing-lg);
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .email-display {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn-copy {
        width: 100%;
        justify-content: center;
    }

    .faq-question {
        padding: var(--spacing-md);
        font-size: 15px;
    }

    .faq-answer {
        padding: var(--spacing-md);
    }

    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 40px;
        height: 40px;
    }

    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
        transform: none;
        bottom: var(--spacing-md);
    }

    .toast {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .navbar-brand {
        font-size: 20px;
    }

    .navbar-menu {
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: 12px;
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    h2 {
        font-size: 22px;
    }

    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 13px;
    }

    .policy-section h2,
    .faq-section h2,
    .support-section h2 {
        font-size: 20px;
    }
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

@media (prefers-contrast: more) {
    :root {
        --text-secondary: #d0d9e8;
        --text-muted: #b0b9c8;
    }
}

/* High contrast mode support */
@media (prefers-contrast: more) {
    .btn-secondary {
        border-width: 2px;
    }

    .summary-card,
    .contact-card,
    .form-card {
        border-width: 2px;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Ensure sufficient tap target size on mobile */
button,
a {
    min-height: 44px;
    min-width: 44px;
}