/* ============================================
   Sbwee - Smart Expense Management
   Landing Page Styles
   ============================================ */

/* CSS Custom Properties (Design Tokens) */
:root {
    /* Colors */
    --color-primary: #007AFF;
    --color-primary-hover: #0056CC;
    --color-primary-light: rgba(0, 122, 255, 0.1);
    --color-background: #E8E8F5;
    --color-white: #FFFFFF;
    --color-text: #000000;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-accent: #F5F5F5;
    --color-error: #FF3B30;
    --color-error-bg: #FFF0F0;
    --color-success: #34C759;
    --color-success-bg: #F0FFF4;
    --color-divider: #E5E5EA;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================
   Layout
   ============================================ */

.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-md);
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-2xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ============================================
   Animation Container
   ============================================ */

.animation-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Heading Section
   ============================================ */

.heading-container.gaming-style {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    width: 100%;
}

.main-heading {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
}

.heading-glow {
    color: var(--color-primary);
    text-shadow: 0 0 10px rgba(0, 122, 255, 0.5);
    font-weight: 700;
}

.hero-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ============================================
   Countdown Card
   ============================================ */

.countdown-card {
    width: 100%;
    max-width: 400px;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: var(--shadow-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.countdown-card-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-md);
}

.launch-countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.countdown-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
}

.countdown-block .countdown-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.countdown-block .countdown-unit {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--spacing-xs);
}

.countdown-separator-large {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.launch-date-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-top: var(--spacing-md);
}

/* ============================================
   About Section
   ============================================ */

.about-section {
    width: 100%;
    max-width: 400px;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   Features Section
   ============================================ */

.features-section {
    width: 100%;
    max-width: 400px;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin: 0 auto var(--spacing-sm);
}

.feature-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.feature-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ============================================
   Subscribe Section
   ============================================ */

.subscribe-section {
    width: 100%;
    max-width: 400px;
    margin-bottom: var(--spacing-xl);
}

.subscribe-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.subscribe-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.subscribe-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* Form Inputs */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.phone-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
}

.country-select {
    width: 90px;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 2px solid var(--color-divider);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    color: var(--color-text);
    cursor: pointer;
}

.country-select:focus {
    border-color: var(--color-primary);
    outline: none;
}

.phone-input,
.email-input {
    flex: 1;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 2px solid var(--color-divider);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.phone-input:focus,
.email-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

.phone-input.error,
.email-input.error {
    border-color: var(--color-error);
}

/* Subscribe Message */
.subscribe-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeIn var(--transition-fast);
}

.subscribe-message.success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.subscribe-message.error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subscribe Button */
.subscribe-button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-primary), #0056CC);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
}

.subscribe-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

.subscribe-button:active {
    transform: scale(0.98);
}

.subscribe-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Loading Spinner */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-style: italic;
}

.footer-link {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Small phones (320px - 374px) */
@media (max-width: 374px) {
    .main-heading {
        font-size: var(--font-size-xl);
    }

    .countdown-block .countdown-value {
        font-size: var(--font-size-2xl);
    }

    .countdown-block {
        min-width: 50px;
    }

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

/* Large phones (414px+) */
@media (min-width: 414px) {
    .container {
        padding: var(--spacing-lg);
    }

    .countdown-card,
    .subscribe-card {
        padding: var(--spacing-xl);
    }
}

/* Tablets (768px+) */
@media (min-width: 768px) {
    .container {
        max-width: 540px;
        padding: var(--spacing-xl);
        padding-top: var(--spacing-2xl);
    }

    .main-heading {
        font-size: var(--font-size-3xl);
    }

    .animation-container lottie-player {
        width: 220px !important;
        height: 220px !important;
    }

    .countdown-block .countdown-value {
        font-size: 2.5rem;
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .container {
        max-width: 580px;
    }

    .countdown-card,
    .subscribe-card {
        border-radius: var(--radius-xl);
    }
}

/* Large Desktop (1920px+) */
@media (min-width: 1920px) {
    html {
        font-size: 18px;
    }

    .container {
        max-width: 640px;
    }
}

/* ============================================
   High Contrast Mode Support
   ============================================ */

@media (prefers-contrast: high) {
    :root {
        --color-primary: #0055CC;
        --color-text: #000000;
        --color-text-secondary: #333333;
        --color-divider: #666666;
    }

    .phone-input,
    .email-input,
    .country-select {
        border-width: 3px;
    }
}

/* ============================================
   Reduced Motion Support
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .loading-spinner {
        animation: none;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    body {
        background: white;
    }

    .subscribe-section,
    .subscribe-button {
        display: none !important;
    }

    .countdown-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}