/* ===============================================
   THE CONFESSION - PREMIUM MOBILE-FIRST DESIGN
   =============================================== */

/* CSS Variables for Consistent Design System */
:root {
    /* Color Palette - Premium Dark Theme */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --card-bg: rgba(25, 25, 35, 0.95);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);
    
    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===============================================
   GLOBAL STYLES & RESET
   =============================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===============================================
   LOADING SCREEN
   =============================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--darker-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-heart {
    font-size: 3rem;
    color: #f5576c;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ===============================================
   BACKGROUND ELEMENTS
   =============================================== */

.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-gradient);
    top: -150px;
    right: -150px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary-gradient);
    bottom: -200px;
    left: -200px;
    animation-delay: -10s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: var(--warning-gradient);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* ===============================================
   MAIN APP CONTAINER
   =============================================== */

.app-container {
    min-height: 100vh;
    position: relative;
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stage {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(30px);
    transition: all var(--transition-smooth);
    padding: var(--space-md);
}

.stage.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.stage-content {
    width: 100%;
    max-width: 480px;
    text-align: center;
    position: relative;
}

/* ===============================================
   STAGE 1: THE CONFESSION
   =============================================== */

.brand-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-gradient);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.headline-container {
    margin-bottom: var(--space-2xl);
    margin-top: 0;
}

.main-headline {
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

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

.sub-headline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 400px;
    margin: 0 auto;
}

.confession-container {
    margin-bottom: var(--space-2xl);
}

.input-wrapper {
    position: relative;
    margin-bottom: var(--space-lg);
}

.confession-input {
    width: 100%;
    background: var(--glass-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    font-size: 1.1rem;
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.5;
    resize: none;
    transition: all var(--transition-smooth);
    backdrop-filter: blur(20px);
    min-height: 120px;
}

.confession-input:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.6);
    box-shadow: var(--shadow-glow);
    background: rgba(255, 255, 255, 0.08);
}

.confession-input::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-sm);
    font-size: 0.9rem;
}

.character-count {
    color: var(--text-muted);
}

.privacy-note {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
}

.privacy-note i {
    color: #43e97b;
}

.confession-btn {
    width: 100%;
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-md);
}

.confession-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.confession-btn:active:not(:disabled) {
    transform: translateY(0);
}

.confession-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.confession-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-smooth);
}

.confession-btn:hover:not(:disabled)::before {
    left: 100%;
}

.btn-icon {
    transition: transform var(--transition-smooth);
}

.confession-btn:hover:not(:disabled) .btn-icon {
    transform: translateX(4px);
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.trust-item i {
    color: #43e97b;
}

/* ===============================================
   STAGE 2: VALIDATION & SOCIAL PROOF
   =============================================== */

.validation-container {
    text-align: center;
}

.validation-icon {
    font-size: 4rem;
    color: #4facfe;
    margin-bottom: var(--space-lg);
    animation: gentle-bounce 2s ease-in-out infinite;
}

@keyframes gentle-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.validation-headline {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-xl);
    line-height: 1.2;
}

.social-proof-card {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.stat-container {
    margin-bottom: var(--space-lg);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    background: var(--success-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.community-pulse {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.pulse-dots {
    display: flex;
    gap: var(--space-xs);
}

.pulse-dot {
    width: 12px;
    height: 12px;
    background: var(--success-gradient);
    border-radius: 50%;
    animation: pulse-wave 1.5s ease-in-out infinite;
}

.pulse-dot:nth-child(2) { animation-delay: 0.2s; }
.pulse-dot:nth-child(3) { animation-delay: 0.4s; }
.pulse-dot:nth-child(4) { animation-delay: 0.6s; }
.pulse-dot:nth-child(5) { animation-delay: 0.8s; }

@keyframes pulse-wave {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

.pulse-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
}

.validation-message {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-xl);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.validation-btn {
    width: 100%;
    background: var(--success-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-md);
}

.validation-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.validation-btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ===============================================
   STAGE 3: SOFT CONVERSION
   =============================================== */

.conversion-container {
    text-align: center;
}

.conversion-icon {
    font-size: 4rem;
    color: #f5576c;
    margin-bottom: var(--space-lg);
}

.conversion-headline {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.conversion-message {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-xl);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

.feature-item:hover {
    border-color: rgba(102, 126, 234, 0.4);
    background: rgba(255, 255, 255, 0.08);
}

.feature-item i {
    font-size: 1.5rem;
    color: #4facfe;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-item div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.feature-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

.feature-item span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.conversion-btn {
    width: 100%;
    background: var(--secondary-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-lg);
}

.conversion-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.conversion-btn:hover .btn-icon {
    transform: translateX(4px);
}

.legal-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: var(--space-md);
    background: rgba(67, 233, 123, 0.1);
    border: 1px solid rgba(67, 233, 123, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
}

.legal-note i {
    font-size: 1.5rem;
    color: #43e97b;
    flex-shrink: 0;
}

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

@media (max-width: 768px) {
    :root {
        --space-xs: 0.25rem;
        --space-sm: 0.75rem;
        --space-md: 1rem;
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 2.5rem;
    }
    
    .app-container {
        padding: 0 var(--space-sm);
        align-items: flex-start;
        justify-content: flex-start;
        min-height: auto;
    }
    
    .stage {
        padding: 0 var(--space-sm);
        position: static;
        transform: none;
        top: 0;
    }

    .features-grid {
        gap: var(--space-md);
    }
    
    .feature-item {
        padding: var(--space-md);
    }
    
    .headline-container {
        margin-top: 0;
        padding-top: 0;
    }
}

@media (max-width: 480px) {
    .confession-input {
        font-size: 1rem;
        padding: var(--space-md);
    }
    
    .confession-btn,
    .validation-btn,
    .conversion-btn {
        font-size: 1rem;
        padding: var(--space-md) var(--space-lg);
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .social-proof-card {
        padding: var(--space-lg);
    }
}

/* ===============================================
   ACCESSIBILITY IMPROVEMENTS
   =============================================== */

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

/* Focus styles for keyboard navigation */
.confession-input:focus,
.confession-btn:focus,
.validation-btn:focus,
.conversion-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.3);
        --glass-bg: rgba(255, 255, 255, 0.1);
    }
}

/* Dark mode is default, but let's ensure it works well */
@media (prefers-color-scheme: dark) {
    :root {
        --dark-bg: #0a0a0a;
        --darker-bg: #050505;
    }
}