/* ==========================================================================
   DISEÑO GLOBAL Y VARIABLES DE TREGURU (SOPORTA CLARO/OSCURO)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

:root {
    --font-heading: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

    /* MODO OSCURO (sobrio, grafito con acento índigo) */
    --bg-main: #0b0d12;
    --bg-card: #12151c;
    --bg-card-hover: #181c26;
    --bg-header: rgba(11, 13, 18, 0.88);
    --border-color: #232837;
    --border-focus: #6366f1;

    --text-primary: #f1f5f9;
    --text-secondary: #a3aec2;
    --text-muted: #6b7690;

    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-secondary: #34d399;
    --color-secondary-hover: #10b981;
    --color-accent: #fbbf24;
    --color-accent-hover: #f59e0b;

    --danger: #f87171;
    --success: #34d399;
    --info: #38bdf8;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.5);
    --shadow-primary: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-gold: 0 1px 2px rgba(0, 0, 0, 0.4);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --glass-bg: rgba(18, 21, 28, 0.82);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-blur: blur(14px);
}

/* MODO CLARO (predeterminado) */
body.light-mode {
    --bg-main: #f6f7f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f3f7;
    --bg-header: rgba(255, 255, 255, 0.92);
    --border-color: #e4e7ee;
    --border-focus: var(--color-primary);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #8492a6;

    --color-secondary: #047857;
    --color-secondary-hover: #065f46;

    --danger: #dc2626;
    --success: #047857;
    --info: #0369a1;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 6px 16px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 18px 40px rgba(15, 23, 42, 0.14);
    --shadow-primary: 0 1px 2px rgba(15, 23, 42, 0.12);
    --shadow-gold: 0 1px 2px rgba(15, 23, 42, 0.12);

    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(15, 23, 42, 0.06);
}

/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.015em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

img, video {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

/* SCROLLBAR PERSONALIZADO */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ANIMACIONES */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

.animate-fade-in {
    animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* SKELETON LOADING */
.skeleton {
    background: linear-gradient(90deg, var(--border-color) 25%, var(--bg-card-hover) 50%, var(--border-color) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite linear;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ESTILOS DE ELEMENTOS COMUNES */
.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}
.btn-primary:active {
    transform: translateY(1px);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}
.btn-secondary:active {
    transform: translateY(1px);
}

.btn-accent {
    background-color: var(--color-accent);
    color: #0f172a;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 700;
    box-shadow: var(--shadow-gold);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-accent:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

.btn-outline {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 11px 23px;
    border-radius: var(--radius-md);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-outline:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--text-muted);
}

/* FORMULARIOS COMUNES */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.form-control {
    width: 100%;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: all 0.25s ease;
}
.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.form-control::placeholder {
    color: var(--text-muted);
}

/* NOTIFICACIONES TOAST */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.toast {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 450px;
    animation: toast-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes toast-in {
    from { transform: translateX(100%) scale(0.9); opacity: 0; }
    to { transform: translateX(0) scale(1); opacity: 1; }
}
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--info); }

/* CONTENEDOR GLASS */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
}

/* BADGES */
.badge {
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
}
.badge-featured { background-color: rgba(99, 102, 241, 0.15); color: var(--color-primary); }
.badge-new { background-color: rgba(16, 185, 129, 0.15); color: var(--color-secondary); }
.badge-presale { background-color: rgba(245, 158, 11, 0.15); color: var(--color-accent); }
.badge-soldout { background-color: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-upcoming { background-color: rgba(14, 165, 233, 0.15); color: var(--info); }