/**
 * Nour Al-Bayan Interactive Platform - UI Components
 * Navigation progress bar (hardware-accelerated), feedback badge, chart container,
 * active student pill, session drill banner (GPU composite pseudo-layer), and interactive modals.
 */

/* ==========================================================================
   1. Navigation Progress Bar & Floating Feedback Badge
   ========================================================================== */
#progress-bar {
    position: absolute;
    bottom: 0;
    inset-inline-start: 0;
    width: 100%;
    height: 3.5px;
    background: linear-gradient(90deg, #10b981, #d97706);
    border-radius: 0 3px 3px 0;
    transform-origin: inline-start;
    transform: scaleX(var(--progress, 0));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    z-index: 40;
}

.feedback-badge {
    position: fixed;
    top: 14vh;
    left: 50%;
    transform: translateX(-50%) scale(0.5);
    z-index: 1000;
    pointer-events: none;
    transition: all 0.3s var(--ease-bounce, cubic-bezier(0.175, 0.885, 0.32, 1.275));
    opacity: 0;
}
.feedback-badge.active {
    transform: translateX(-50%) scale(1.1);
    opacity: 1;
}

.chart-container {
    position: relative;
    width: 100%;
    max-width: 220px;
    margin-inline: auto;
    height: 150px;
}

/* ==========================================================================
   2. Active Student Header Pill
   ========================================================================== */
#active-student-pill {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}

#active-student-pill:hover {
    background-color: rgba(209, 250, 229, 0.95);
    border-color: #6ee7b7;
}

/* ==========================================================================
   3. Session Drill Banner, Early Exit Modal & Wordwall Mistake Filter
   ========================================================================== */

/* Session Drill Active Banner (Hardware-Accelerated Pseudo-Layer Motion) */
#session-drill-banner {
    position: relative;
    overflow: hidden;
    background: #e11d48;
    box-shadow: 0 4px 14px rgba(225, 29, 72, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.3);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}

#session-drill-banner::before {
    content: "";
    position: absolute;
    inset: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(135deg, #e11d48 0%, #d97706 50%, #e11d48 100%);
    animation: drillGradientFlow 6s linear infinite;
    will-change: transform;
    z-index: 0;
}

#session-drill-banner > * {
    position: relative;
    z-index: 1;
}

@keyframes drillGradientFlow {
    0% { transform: translate3d(-20%, 0, 0); }
    50% { transform: translate3d(0%, 0, 0); }
    100% { transform: translate3d(-20%, 0, 0); }
}

#session-drill-banner #session-drill-title {
    letter-spacing: normal !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

#session-drill-banner #session-drill-step-indicator {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
}

#session-drill-banner #drill-cur {
    color: #fef08a;
    font-weight: 900;
}

#session-drill-banner #drill-total {
    color: #ffffff;
    font-weight: 800;
}

#session-drill-banner button {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.15s ease, background-color 0.15s ease;
}

#session-drill-banner button:hover {
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.35);
}

#session-drill-banner button:active {
    transform: scale(0.95);
}

/* Early Exit Modal & Dialog Elements */
#early-exit-modal {
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#btn-early-exit-save {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 4px 10px rgba(4, 120, 87, 0.28);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#btn-early-exit-save:hover {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(4, 120, 87, 0.35);
}

#btn-early-exit-cancel {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#btn-early-exit-cancel:hover {
    background-color: #fee2e2;
    border-color: #f87171;
    color: #991b1b;
    transform: translateY(-1px);
}

#btn-early-exit-resume {
    transition: all 0.15s ease;
}

#btn-early-exit-resume:hover {
    background-color: #e2e8f0;
    color: #0f172a;
}

/* Wordwall Mistakes Filter Toggle Button */
#btn-ww-mistakes-filter {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    white-space: nowrap;
}

#btn-ww-mistakes-filter:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(217, 119, 6, 0.2);
}

#btn-ww-mistakes-filter.active,
#btn-ww-mistakes-filter[data-active="true"] {
    background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
    color: #ffffff;
    border-color: #be123c;
    box-shadow: 0 2px 8px rgba(225, 29, 72, 0.35);
}

#btn-ww-mistakes-filter.active:hover,
#btn-ww-mistakes-filter[data-active="true"]:hover {
    background: linear-gradient(135deg, #fb7185 0%, #f43f5e 100%);
    box-shadow: 0 4px 14px rgba(225, 29, 72, 0.45);
}