/* ========================================
   Design System
   ======================================== */

:root {
    /* Colors */
    --color-primary: #667eea;
    --color-primary-dark: #5568d3;
    --color-secondary: #764ba2;
    --color-accent: #f093fb;

    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;

    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);

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

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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;
    --font-size-4xl: 2.5rem;
}

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

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--gradient-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

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

.container {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.logo {
    filter: drop-shadow(var(--shadow-glow));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

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

/* ========================================
   Typography
   ======================================== */

.title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.6s ease;
}

.subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    text-align: center;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* ========================================
   Trust Badges
   ======================================== */

.trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
}

.badge:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.badge-icon {
    color: var(--color-primary);
}

/* ========================================
   Form
   ======================================== */

.form {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.form.hidden {
    display: none;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

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

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--color-error);
    font-size: var(--font-size-sm);
    min-height: 1.25rem;
}

/* Consent Checkbox */
.consent-group {
    margin-bottom: var(--spacing-xl);
}

.checkbox-label {
    display: flex;
    gap: var(--spacing-md);
    cursor: pointer;
    user-select: none;
}

.checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    position: relative;
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.checkbox-input:checked~.checkbox-custom {
    background: var(--gradient-primary);
    border-color: var(--color-primary);
}

.checkbox-input:checked~.checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 7px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-input:focus~.checkbox-custom {
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.checkbox-text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.consent-link {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.consent-link:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* ========================================
   Button
   ======================================== */

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

.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-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -5px rgba(102, 126, 234, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-text {
    position: relative;
    z-index: 1;
}

.btn-icon {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-base);
}

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

/* ========================================
   Success Message
   ======================================== */

.success-message {
    display: none;
    text-align: center;
    padding: var(--spacing-2xl);
    animation: fadeInScale 0.5s ease;
}

.success-message.visible {
    display: block;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-icon {
    color: var(--color-success);
    margin-bottom: var(--spacing-lg);
    animation: checkmark 0.5s ease 0.2s backwards;
}

@keyframes checkmark {
    0% {
        opacity: 0;
        transform: scale(0);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.success-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.success-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ========================================
   Social Proof
   ======================================== */

.social-proof {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

/* ========================================
   Loading Overlay
   ======================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.visible {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 640px) {
    :root {
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.25rem;
        --font-size-lg: 1rem;
    }

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

    .form {
        padding: var(--spacing-xl);
    }

    .trust-badges {
        gap: var(--spacing-sm);
    }

    .badge {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .title {
        font-size: var(--font-size-2xl);
    }

    .checkbox-text {
        font-size: var(--font-size-xs);
    }
}