/* ==========================================================================
   StampMe Design System
   Warm, playful, craft-inspired — derived from the kawaii mascot personality.
   ========================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,600;12..96,700;12..96,800&family=Nunito:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Design Tokens --- */
:root {
    --ink:    #2d3a5c;
    --stamp:  #d4342a;
    --dot:    #6ba4d4;
    --spark:  #e8a32e;
    --paper:  #f5f0eb;
    --card:   #ffffff;
    --text:   #1a1a2e;
    --muted:  #8b8fa3;

    --font-heading: 'Bricolage Grotesque', system-ui, sans-serif;
    --font-body:    'Nunito', system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', ui-monospace, monospace;

    --radius-sm:  8px;
    --radius-md:  12px;
    --radius-lg:  16px;
    --radius-xl:  24px;

    --shadow-sm:  0 1px 3px rgba(45, 58, 92, 0.08);
    --shadow-md:  0 4px 12px rgba(45, 58, 92, 0.10);
    --shadow-lg:  0 8px 32px rgba(45, 58, 92, 0.14);
    --shadow-xl:  0 16px 48px rgba(45, 58, 92, 0.18);

    --transition: 0.2s ease;
}

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

/* --- Base Typography --- */
body {
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--text);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 1.75rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }

code, .mono {
    font-family: var(--font-mono);
}

a {
    color: var(--stamp);
    text-decoration: none;
    transition: opacity var(--transition);
}
a:hover {
    opacity: 0.8;
}

/* --- Background Patterns --- */
.bg-paper {
    background-color: var(--paper);
}

.bg-ink {
    background-color: var(--ink);
    color: #fff;
}

.bg-dot-grid {
    background-color: var(--paper);
    background-image: radial-gradient(circle, var(--dot) 1px, transparent 1px);
    background-size: 24px 24px;
}

.bg-grain {
    background-color: var(--paper);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

/* --- Components: Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0) scale(0.98);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-primary {
    background: var(--ink);
    color: #fff;
}
.btn-primary:hover {
    background: #364872;
}

.btn-accent {
    background: var(--stamp);
    color: #fff;
}
.btn-accent:hover {
    background: #b82d24;
}

.btn-secondary {
    background: var(--paper);
    color: var(--text);
    border: 1px solid #d8d2ca;
}
.btn-secondary:hover {
    background: #ede7df;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* --- Components: Cards --- */
.card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    /* Only apply lift on cards with .card-hover */
}
.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Components: Badge --- */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    background: var(--paper);
    color: var(--text);
}
.badge-active {
    background: #d9f0d9;
    color: #1a6b1a;
}
.badge-revoked {
    background: #f8d7da;
    color: #721c24;
}

/* --- Components: Input --- */
.input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #d8d2ca;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text);
    background: var(--card);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.input:focus {
    outline: none;
    border-color: var(--ink);
    box-shadow: 0 0 0 3px rgba(45, 58, 92, 0.12);
}
.input::placeholder {
    color: var(--muted);
}

/* --- Components: Alert --- */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-bottom: 1rem;
    text-align: center;
}
.alert-success {
    background: #d9f0d9;
    color: #1a6b1a;
}
.alert-error {
    background: #f8d7da;
    color: #721c24;
}
.alert-spark {
    background: linear-gradient(135deg, rgba(232, 163, 46, 0.15), rgba(232, 163, 46, 0.05));
    border: 1px solid rgba(232, 163, 46, 0.3);
    color: var(--text);
}

/* --- Components: Token Display --- */
.token-display {
    background: var(--ink);
    color: var(--spark);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1.25rem;
    text-align: center;
    letter-spacing: 0.05em;
    margin: 1rem 0;
}

/* --- Components: Divider --- */
.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--muted);
    font-size: 0.875rem;
}
.divider::before, .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #d8d2ca;
}
.divider::before { margin-right: 1rem; }
.divider::after  { margin-left: 1rem; }

/* --- Layout Utilities --- */
.hidden {
    display: none !important;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* --- Animation Keyframes --- */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes stamp-press {
    0%   { transform: scale(1) rotate(0deg); }
    40%  { transform: scale(0.92) rotate(-2deg); }
    70%  { transform: scale(1.03) rotate(0.5deg); }
    100% { transform: scale(1) rotate(0deg); }
}

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

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

/* Animation utility classes */
.animate-fade-up {
    animation: fade-up 0.5s ease both;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

.animate-stamp-press {
    animation: stamp-press 0.35s ease;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    .container {
        padding: 1.5rem 1rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
}