/**
 * Aliada QR Generator - Production Styling
 * Design System: Vibrant Empowerment
 * Glassmorphism + High-Contrast Boldness
 */

:root {
    /* Design System Tokens */
    --color-primary: #630ed4;
    --color-primary-container: #7c3aed;
    --color-primary-fixed: #eaddff;
    --color-on-primary: #ffffff;
    
    --color-secondary: #006c49;
    --color-secondary-container: #6cf8bb;
    --color-on-secondary-container: #00714d;
    --color-on-secondary: #ffffff;

    --color-tertiary: #732ee4;
    --color-tertiary-container: #78599b;

    --color-surface: #f7f9ff;
    --color-surface-dim: #bddeff;
    --color-surface-container-lowest: #ffffff;
    --color-surface-container-low: #edf4ff;
    --color-surface-container: #e2efff;
    --color-surface-container-high: #d8eaff;
    --color-surface-container-highest: #cde5ff;

    --color-on-surface: #001d32;
    --color-on-surface-variant: #4a4455;
    --color-outline: #7b7487;
    --color-outline-variant: #ccc3d8;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #630ed4 0%, #7c3aed 100%);
    --gradient-emerald: linear-gradient(135deg, #006c49 0%, #009866 100%);
    --gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(247, 249, 255, 0.70) 100%);
    
    /* Typography */
    --font-primary: 'Open Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Instrument Sans', 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Radii */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-pill: 9999px;

    /* Glass Tokens */
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-border: 1px solid rgba(255, 255, 255, 0.65);
    --glass-shadow: 0 10px 30px rgba(99, 14, 212, 0.08);
}

/* Base resets */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-surface);
    color: var(--color-on-surface);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .brand-title, .display-title {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-on-surface);
    letter-spacing: -0.02em;
}

/* Ambient Background Glows */
.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.45;
    pointer-events: none;
    z-index: 0;
}

.glow-violet {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(99, 14, 212, 0.35) 0%, rgba(99, 14, 212, 0) 70%);
    top: -100px;
    right: -80px;
}

.glow-emerald {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 108, 73, 0.25) 0%, rgba(0, 108, 73, 0) 70%);
    bottom: 50px;
    left: -100px;
}

.glow-lilac {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.2) 0%, rgba(124, 58, 237, 0) 70%);
    top: 45%;
    right: 30%;
}

/* Glassmorphism Components */
.glass-navbar-container {
    background: rgba(247, 249, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(204, 195, 216, 0.35);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.glass-card-sm {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(0, 29, 50, 0.04);
}

.glass-chip {
    background: rgba(234, 221, 255, 0.7);
    border: 1px solid rgba(124, 58, 237, 0.2);
}

/* Brand styling */
.brand-icon-box {
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(99, 14, 212, 0.3);
}

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

.text-emerald {
    color: var(--color-secondary) !important;
}

.text-secondary-contrast {
    color: var(--color-on-surface-variant);
}

.bg-violet { background-color: #630ed4; }
.bg-emerald { background-color: #006c49; }
.bg-navy { background-color: #001d32; }

/* Pulse Indicator */
.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    display: inline-block;
    box-shadow: 0 0 0 0 rgba(0, 108, 73, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 108, 73, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 108, 73, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 108, 73, 0); }
}

/* Typography Hierarchy */
.display-title {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
}

.lead-text {
    font-size: 1.125rem;
    font-weight: 400;
}

/* Form Controls & Inputs (Vibrant Emerald activation state) */
.glass-input {
    background-color: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-md);
    color: var(--color-on-surface);
    padding: 0.65rem 0.9rem;
    font-size: 0.95rem;
    transition: all 0.2s ease-in-out;
}

.glass-input:focus {
    background-color: #ffffff;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(0, 108, 73, 0.2);
    color: var(--color-on-surface);
}

.glass-input-addon {
    background-color: rgba(247, 249, 255, 0.85);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

/* Navigation Tabs */
#qrTypeTabs .nav-link {
    color: var(--color-on-surface-variant);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(204, 195, 216, 0.4);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.55rem 1rem;
    transition: all 0.2s ease;
}

#qrTypeTabs .nav-link:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-primary);
}

#qrTypeTabs .nav-link.active {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99, 14, 212, 0.25);
}

/* Buttons */
.btn-primary-gradient {
    background: var(--gradient-primary);
    border: none;
    color: #ffffff;
    transition: all 0.25s ease;
}

.btn-primary-gradient:hover {
    background: linear-gradient(135deg, #530cb3 0%, #6d28d9 100%);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 14, 212, 0.35) !important;
}

.btn-emerald-gradient {
    background: var(--gradient-emerald);
    border: none;
    color: #ffffff;
    transition: all 0.25s ease;
}

.btn-emerald-gradient:hover {
    background: linear-gradient(135deg, #005a3d 0%, #008156 100%);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 108, 73, 0.35) !important;
}

.glass-btn-action {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(204, 195, 216, 0.6);
    color: var(--color-on-surface);
    transition: all 0.2s ease;
}

.glass-btn-action:hover {
    background: #ffffff;
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 29, 50, 0.08);
}

.glass-btn-icon {
    border-color: var(--color-outline-variant);
    background: rgba(255, 255, 255, 0.7);
}

/* Canvas Display Area */
.qr-canvas-wrapper {
    background: #ffffff;
    box-shadow: inset 0 2px 8px rgba(0, 29, 50, 0.06), 0 8px 24px rgba(99, 14, 212, 0.08);
    border: 2px solid rgba(204, 195, 216, 0.4);
    min-height: 330px;
    max-width: 360px;
    position: relative;
    transition: all 0.3s ease;
}

.qr-canvas-wrapper canvas, 
.qr-canvas-wrapper svg {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Color Picker Swatches */
.glass-color-picker {
    height: 38px;
    padding: 3px;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.color-swatch {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    vertical-align: middle;
}

.glass-preset-btn {
    border: 1px solid rgba(204, 195, 216, 0.5);
    background: rgba(255, 255, 255, 0.7);
}

.glass-preset-btn:hover {
    border-color: var(--color-primary);
}

/* Custom Range Slider */
.custom-range::-webkit-slider-thumb {
    background: var(--color-primary);
    box-shadow: 0 2px 6px rgba(99, 14, 212, 0.4);
}

.custom-range::-moz-range-thumb {
    background: var(--color-primary);
}

.x-small {
    font-size: 0.75rem;
}

/* History Card */
.history-item {
    transition: all 0.2s ease;
    cursor: pointer;
}

.history-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(99, 14, 212, 0.12);
}

/* Dropdown */
.glass-dropdown {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(204, 195, 216, 0.5);
    border-radius: var(--radius-lg);
}

.glass-dropdown .dropdown-item:hover {
    background: rgba(234, 221, 255, 0.6);
    color: var(--color-primary);
}

/* Footer */
.footer-section {
    background: rgba(247, 249, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(204, 195, 216, 0.4);
}

.footer-text {
    font-size: 0.9rem;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .display-title {
        font-size: 1.75rem;
    }
    .lead-text {
        font-size: 1rem;
    }
    .qr-canvas-wrapper {
        min-height: 280px;
    }
}