/**
 * OS TigerLab — Reward Moments
 *
 * Estilos para los momentos de recompensa del alumno:
 *   - .ostl-reward-toast   → mini-toast bottom-right (lección completada)
 *   - .ostl-reward-banner  → banner full-width (módulo completo)
 *   - .ostl-reward-modal   → modal full-screen (curso completo + certificado)
 *   - .ostl-streak-badge   → badge de racha (in-app, dashboard)
 *
 * Reusa tokens del DS v2: --color-accent, --shadow-*, --d-*, --ease-*.
 * Coexiste con .ostl-confetti-* (script confetti.js).
 */

/* =================================================================== */
/* MINI-TOAST (lección completada)                                     */
/* =================================================================== */
.ostl-reward-toast {
    position: fixed;
    right: var(--sp-4, 16px);
    bottom: max(var(--sp-4, 16px), var(--safe-bottom, env(safe-area-inset-bottom, 0px)));
    z-index: var(--z-toast-success, 5500);
    min-width: 240px;
    max-width: 360px;
    padding: var(--sp-3, 12px) var(--sp-4, 16px);
    background: linear-gradient(135deg,
        color-mix(in oklab, var(--color-accent, #00FF9C) 18%, var(--color-bg-elevated, #1E1E1E)),
        var(--color-bg-elevated, #1E1E1E));
    color: var(--color-text-primary, #F5F5F5);
    border: 1px solid color-mix(in oklab, var(--color-accent, #00FF9C) 35%, transparent);
    border-radius: var(--radius-md, 12px);
    box-shadow: var(--shadow-3, 0 12px 32px rgba(0, 0, 0, 0.5));
    transform: translate(120%, 0);
    opacity: 0;
    transition:
        transform var(--d-base, 240ms) var(--ease-out-cubic, cubic-bezier(0.33, 1, 0.68, 1)),
        opacity var(--d-base, 240ms) ease-out;
    will-change: transform, opacity;
    display: flex;
    align-items: center;
    gap: var(--sp-3, 12px);
    font-family: var(--font-body, 'Inter', sans-serif);
}

.ostl-reward-toast[data-visible="true"] {
    transform: translate(0, 0);
    opacity: 1;
}

.ostl-reward-toast__icon {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--color-accent, #00FF9C);
    color: var(--color-text-on-accent, #0A0A0A);
    display: grid; place-items: center;
    flex-shrink: 0;
    animation: ostl-reward-pop 600ms var(--ease-out-cubic, cubic-bezier(0.33, 1, 0.68, 1));
}
.ostl-reward-toast__icon svg { width: 20px; height: 20px; }

.ostl-reward-toast__body { min-width: 0; }
.ostl-reward-toast__title {
    font-weight: 600;
    font-size: var(--fs-sm, 0.9375rem);
    margin: 0 0 2px;
}
.ostl-reward-toast__sub {
    color: var(--color-text-secondary, #B3B3B3);
    font-size: var(--fs-xs, 0.8125rem);
    margin: 0;
}

@media (max-width: 480px) {
    .ostl-reward-toast {
        left: var(--sp-3); right: var(--sp-3);
        min-width: 0; max-width: none;
    }
}

/* =================================================================== */
/* BANNER (módulo completo / quiz aprobado)                            */
/* =================================================================== */
.ostl-reward-banner {
    position: fixed;
    inset-inline: var(--sp-4, 16px);
    top: var(--sp-4, 16px);
    z-index: calc(var(--z-toast-success, 5500) - 100);
    max-width: 720px;
    margin-inline: auto;
    padding: var(--sp-5, 20px) var(--sp-6, 24px);
    background: var(--color-bg-elevated, #1E1E1E);
    color: var(--color-text-primary, #F5F5F5);
    border-radius: var(--radius-lg, 16px);
    border: 1px solid color-mix(in oklab, var(--color-accent, #00FF9C) 40%, var(--color-border-default, #2A2A2A));
    box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-accent, #00FF9C) 22%, transparent),
                var(--shadow-4, 0 24px 64px rgba(0, 0, 0, 0.6));
    transform: translateY(-120%);
    opacity: 0;
    transition:
        transform var(--d-slow, 360ms) var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1)),
        opacity var(--d-base, 240ms) ease-out;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-4, 16px);
}

.ostl-reward-banner[data-visible="true"] {
    transform: translateY(0);
    opacity: 1;
}

.ostl-reward-banner__icon {
    width: 48px; height: 48px;
    flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent, #00FF9C), color-mix(in oklab, var(--color-accent) 50%, var(--color-accent-2, #00B4FF)));
    color: var(--color-text-on-accent, #0A0A0A);
    display: grid; place-items: center;
    animation: ostl-reward-pop 700ms var(--ease-out-cubic, cubic-bezier(0.33, 1, 0.68, 1));
}
.ostl-reward-banner__icon svg { width: 26px; height: 26px; }

.ostl-reward-banner__body { flex: 1; min-width: 200px; }
.ostl-reward-banner__title {
    font-family: var(--font-display, 'Poppins', sans-serif);
    font-weight: 700;
    font-size: var(--fs-lg, 1.125rem);
    margin: 0 0 var(--sp-1, 4px);
}
.ostl-reward-banner__sub {
    color: var(--color-text-secondary, #B3B3B3);
    font-size: var(--fs-sm, 0.9375rem);
    margin: 0;
}

.ostl-reward-banner__actions { display: flex; gap: var(--sp-2, 8px); }

.ostl-reward-banner__close {
    background: transparent;
    border: 0;
    color: var(--color-text-secondary);
    cursor: pointer;
    width: 32px; height: 32px;
    border-radius: var(--radius-sm, 8px);
    display: grid; place-items: center;
    transition: background var(--d-fast, 160ms), color var(--d-fast);
}
.ostl-reward-banner__close:hover { background: var(--color-bg-secondary, #161616); color: var(--color-text-primary); }
.ostl-reward-banner__close:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* =================================================================== */
/* MODAL FULL-SCREEN (curso completo, certificado)                      */
/* =================================================================== */
.ostl-reward-modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-confetti, 5800);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--sp-3);
}
.ostl-reward-modal[data-open="true"] {
    display: flex;
    animation: ostl-reward-fade-in var(--d-base, 240ms) ease-out;
}

.ostl-reward-modal__backdrop {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at center,
        color-mix(in oklab, var(--color-accent, #00FF9C) 12%, rgba(0, 0, 0, 0.85)),
        rgba(0, 0, 0, 0.95)
    );
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.ostl-reward-modal__panel {
    position: relative;
    width: 100%;
    max-width: 640px;
    padding: var(--sp-7, 28px) var(--sp-6, 24px);
    text-align: center;
    background: var(--color-bg-elevated, #1E1E1E);
    border: 1px solid color-mix(in oklab, var(--color-accent, #00FF9C) 40%, var(--color-border-default));
    border-radius: var(--radius-lg, 16px);
    box-shadow: 0 0 80px color-mix(in oklab, var(--color-accent, #00FF9C) 30%, transparent),
                var(--shadow-4);
    animation: ostl-reward-scale-in var(--d-slow, 360ms) var(--ease-out-cubic);
}

.ostl-reward-modal__crown {
    width: 96px; height: 96px;
    margin: 0 auto var(--sp-4);
    border-radius: 50%;
    display: grid; place-items: center;
    background: linear-gradient(135deg,
        var(--color-accent, #00FF9C),
        var(--color-accent-2, #00B4FF));
    color: var(--color-text-on-accent, #0A0A0A);
    box-shadow: 0 0 40px color-mix(in oklab, var(--color-accent, #00FF9C) 50%, transparent);
    animation: ostl-reward-pop 800ms var(--ease-out-cubic) 100ms backwards,
               ostl-reward-glow 3s ease-in-out 1s infinite;
}
.ostl-reward-modal__crown svg { width: 52px; height: 52px; }

.ostl-reward-modal__title {
    font-family: var(--font-display, 'Poppins', sans-serif);
    font-weight: 700;
    font-size: var(--fs-3xl, 1.875rem);
    line-height: 1.2;
    margin: 0 0 var(--sp-3);
    color: var(--color-text-primary, #F5F5F5);
    letter-spacing: -0.01em;
}

.ostl-reward-modal__sub {
    color: var(--color-text-secondary, #B3B3B3);
    font-size: var(--fs-base, 1rem);
    line-height: 1.55;
    margin: 0 0 var(--sp-5);
    max-width: 48ch;
    margin-inline: auto;
}

.ostl-reward-modal__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3);
    justify-content: center;
}

.ostl-reward-modal__close {
    position: absolute;
    top: var(--sp-3);
    right: var(--sp-3);
    width: 36px; height: 36px;
    border: 1px solid var(--color-border-default);
    background: transparent;
    color: var(--color-text-primary);
    border-radius: var(--radius-md, 12px);
    cursor: pointer;
    display: grid; place-items: center;
    transition: background var(--d-fast);
}
.ostl-reward-modal__close:hover { background: var(--color-bg-secondary); }
.ostl-reward-modal__close:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* =================================================================== */
/* STREAK BADGE (racha visible)                                         */
/* =================================================================== */
.ostl-streak-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2, 8px);
    padding: var(--sp-1, 4px) var(--sp-3, 12px);
    border-radius: var(--radius-pill, 999px);
    background: linear-gradient(135deg,
        color-mix(in oklab, #FBBF24 30%, transparent),
        color-mix(in oklab, var(--color-accent, #00FF9C) 18%, transparent));
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: var(--fs-sm);
    border: 1px solid color-mix(in oklab, #FBBF24 50%, transparent);
}
.ostl-streak-badge__flame {
    width: 16px; height: 16px;
    color: #FBBF24;
    animation: ostl-streak-flame 1.4s ease-in-out infinite alternate;
    transform-origin: bottom center;
}

/* =================================================================== */
/* ANIMACIONES                                                          */
/* =================================================================== */
@keyframes ostl-reward-pop {
    0%   { transform: scale(0)   rotate(-15deg); }
    60%  { transform: scale(1.2) rotate(8deg); }
    100% { transform: scale(1)   rotate(0); }
}
@keyframes ostl-reward-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes ostl-reward-scale-in {
    from { opacity: 0; transform: scale(0.9) translateY(12px); }
    to   { opacity: 1; transform: scale(1)   translateY(0); }
}
@keyframes ostl-reward-glow {
    0%, 100% { box-shadow: 0 0 30px color-mix(in oklab, var(--color-accent, #00FF9C) 30%, transparent); }
    50%      { box-shadow: 0 0 60px color-mix(in oklab, var(--color-accent, #00FF9C) 70%, transparent); }
}
@keyframes ostl-streak-flame {
    from { transform: rotate(-3deg) scale(1); }
    to   { transform: rotate(3deg)  scale(1.08); }
}

/* =================================================================== */
/* REDUCE MOTION                                                        */
/* =================================================================== */
@media (prefers-reduced-motion: reduce) {
    .ostl-reward-toast,
    .ostl-reward-banner,
    .ostl-reward-modal__backdrop,
    .ostl-reward-modal__panel,
    .ostl-reward-modal__crown,
    .ostl-streak-badge__flame {
        animation: none !important;
        transition-duration: 1ms !important;
    }
    .ostl-reward-toast[data-visible="true"],
    .ostl-reward-banner[data-visible="true"] {
        transform: none;
    }
}

[data-motion="off"] .ostl-reward-toast,
[data-motion="off"] .ostl-reward-banner,
[data-motion="off"] .ostl-reward-modal__crown,
[data-motion="off"] .ostl-streak-badge__flame {
    animation: none !important;
}

/* =================================================================== */
/* LIGHT MODE                                                           */
/* =================================================================== */
[data-theme="light"] .ostl-reward-toast,
[data-theme="light"] .ostl-reward-banner,
[data-theme="light"] .ostl-reward-modal__panel {
    background: #FFFFFF;
    color: #0A0A0A;
}