/**
 * drawer.css - Premium Detail Drawer
 *
 * A stunning glassmorphism-inspired drawer with smooth animations,
 * gradient accents, and refined micro-interactions.
 */

/* -----------------------------------------------------------------------------
 * Backdrop Overlay
 * -------------------------------------------------------------------------- */

.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        rgba(0, 0, 0, 0.4),
        rgba(0, 0, 0, 0.85)
    );
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: var(--z-overlay);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.drawer-backdrop--visible {
    opacity: 1;
    pointer-events: auto;
}

/* -----------------------------------------------------------------------------
 * Drawer Panel
 * -------------------------------------------------------------------------- */

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(40vw, 720px);
    min-width: 380px;

    /* Glassmorphism background */
    background: linear-gradient(
        160deg,
        rgba(10, 10, 10, 0.98) 0%,
        rgba(20, 20, 20, 0.95) 50%,
        rgba(15, 15, 15, 0.98) 100%
    );
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);

    /* Glowing border effect */
    border-left: 1px solid rgba(234, 88, 12, 0.3);
    box-shadow:
        -20px 0 60px rgba(0, 0, 0, 0.5),
        -2px 0 20px rgba(234, 88, 12, 0.1),
        inset 1px 0 0 rgba(255, 255, 255, 0.03);

    z-index: var(--z-drawer);
    display: flex;
    flex-direction: column;
    overflow: hidden;

    /* Slide animation */
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.drawer--open {
    transform: translateX(0);
}

/* -----------------------------------------------------------------------------
 * Header
 * -------------------------------------------------------------------------- */

.drawer__header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.75rem 2rem;
    background: linear-gradient(180deg, rgba(234, 88, 12, 0.08) 0%, transparent 100%);
    border-bottom: 1px solid rgba(234, 88, 12, 0.2);
}

.drawer__header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 2rem;
    right: 2rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(234, 88, 12, 0.5), transparent);
}

.drawer__header-content {
    flex: 1;
}

.drawer__section-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--orange-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.drawer__title {
    font-family: "JetBrains Mono", monospace;
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.drawer__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.25s ease;
}

.drawer__close:hover {
    background: rgba(234, 88, 12, 0.15);
    border-color: rgba(234, 88, 12, 0.3);
    color: var(--orange-400);
    transform: rotate(90deg);
}

/* -----------------------------------------------------------------------------
 * Body / Content
 * -------------------------------------------------------------------------- */

.drawer__body {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(234, 88, 12, 0.3) transparent;
}

.drawer__body::-webkit-scrollbar {
    width: 6px;
}

.drawer__body::-webkit-scrollbar-track {
    background: transparent;
}

.drawer__body::-webkit-scrollbar-thumb {
    background: rgba(234, 88, 12, 0.3);
    border-radius: 3px;
}

.drawer__body::-webkit-scrollbar-thumb:hover {
    background: rgba(234, 88, 12, 0.5);
}

.drawer__section {
    margin-bottom: 2.5rem;
}

.drawer__section:last-child {
    margin-bottom: 0;
}

.drawer__section-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.65rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.35);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.drawer__section-title svg {
    opacity: 0.5;
}

/* -----------------------------------------------------------------------------
 * Description
 * -------------------------------------------------------------------------- */

.drawer__description {
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.01em;
}

/* -----------------------------------------------------------------------------
 * Learning Status Card
 * -------------------------------------------------------------------------- */

.drawer__status-card {
    position: relative;
    padding: 1.25rem 1.5rem;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.drawer__status-card::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(234, 88, 12, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.drawer__status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    position: relative;
}

.drawer__status-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
}

.drawer__status-percent {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--orange-400);
}

.drawer__progress-bar {
    height: 6px;
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.drawer__progress-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--orange-600), var(--orange-400));
    box-shadow: 0 0 12px rgba(234, 88, 12, 0.5);
    width: 0%;
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.drawer__status-button {
    width: 100%;
    padding: 0.875rem 1.25rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #ffffff;
    background: linear-gradient(135deg, var(--orange-600) 0%, var(--orange-500) 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(234, 88, 12, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.drawer__status-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(234, 88, 12, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.drawer__status-button:active {
    transform: translateY(0);
}

/* -----------------------------------------------------------------------------
 * Resources
 * -------------------------------------------------------------------------- */

.drawer__resources {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.drawer__resource-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-decoration: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

.drawer__resource-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.drawer__resource-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(234, 88, 12, 0.3);
    transform: translateX(-4px);
}

.drawer__resource-card:hover::before {
    opacity: 1;
}

.drawer__resource-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.drawer__resource-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.drawer__resource-card:hover .drawer__resource-icon {
    background: rgba(234, 88, 12, 0.15);
    color: var(--orange-400);
}

.drawer__resource-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.3s ease;
}

.drawer__resource-card:hover .drawer__resource-label {
    color: #ffffff;
}

.drawer__resource-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.drawer__resource-external {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.drawer__resource-card:hover .drawer__resource-external {
    color: var(--orange-400);
    background: rgba(234, 88, 12, 0.1);
}

/* -----------------------------------------------------------------------------
 * Badges
 * -------------------------------------------------------------------------- */

.drawer__resource-badge {
    padding: 0.35rem 0.75rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: 6px;
    border: 1px solid;
    white-space: nowrap;
}

.badge--official {
    background: rgba(234, 88, 12, 0.15);
    color: #f97316;
    border-color: rgba(234, 88, 12, 0.4);
}

.badge--opensource {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.4);
}

.badge--crate {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.4);
}

.badge--article {
    background: rgba(14, 165, 233, 0.15);
    color: #0ea5e9;
    border-color: rgba(14, 165, 233, 0.4);
}

.badge--book {
    background: rgba(99, 102, 241, 0.15);
    color: #6366f1;
    border-color: rgba(99, 102, 241, 0.4);
}

.badge--video {
    background: rgba(251, 113, 133, 0.15);
    color: #fb7185;
    border-color: rgba(251, 113, 133, 0.4);
}

.badge--course {
    background: rgba(20, 184, 166, 0.15);
    color: #14b8a6;
    border-color: rgba(20, 184, 166, 0.4);
}

.badge--interactive {
    background: rgba(217, 70, 239, 0.15);
    color: #d946ef;
    border-color: rgba(217, 70, 239, 0.4);
}

.badge--podcast {
    background: rgba(139, 92, 246, 0.15);
    color: #8b5cf6;
    border-color: rgba(139, 92, 246, 0.4);
}

.badge--newsletter {
    background: rgba(250, 204, 21, 0.12);
    color: #facc15;
    border-color: rgba(250, 204, 21, 0.4);
}

.badge--community {
    background: rgba(34, 211, 238, 0.15);
    color: #22d3ee;
    border-color: rgba(34, 211, 238, 0.4);
}

.badge--default {
    background: rgba(148, 163, 184, 0.1);
    color: #94a3b8;
    border-color: rgba(148, 163, 184, 0.3);
}

/* -----------------------------------------------------------------------------
 * Code Preview
 * -------------------------------------------------------------------------- */

.drawer__code-preview {
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-family: "JetBrains Mono", monospace;
    font-size: 0.85rem;
    line-height: 1.7;
    overflow-x: auto;
}

.drawer__code-line {
    color: rgba(255, 255, 255, 0.7);
}

.drawer__code-keyword {
    color: #c792ea;
}

.drawer__code-function {
    color: #82aaff;
}

.drawer__code-comment {
    color: rgba(255, 255, 255, 0.35);
    font-style: italic;
}

.drawer__code-macro {
    color: var(--orange-400);
}

.drawer__code-string {
    color: #c3e88d;
}

/* -----------------------------------------------------------------------------
 * Empty State
 * -------------------------------------------------------------------------- */

.drawer__empty {
    text-align: center;
    padding: 2rem 1.5rem;
    border-radius: 12px;
    border: 1px dashed rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
    font-style: italic;
}

/* -----------------------------------------------------------------------------
 * Responsive
 * -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .drawer {
        width: 50vw;
        min-width: 400px;
    }
}

@media (max-width: 768px) {
    .drawer {
        width: 100%;
        min-width: unset;
        max-width: 100%;
        border-left: none;
        border-top: 1px solid rgba(234, 88, 12, 0.3);
    }

    .drawer__header {
        padding: 1.5rem;
    }

    .drawer__body {
        padding: 1.5rem;
    }

    .drawer__title {
        font-size: 1.2rem;
    }
}

/* -----------------------------------------------------------------------------
 * Animations
 * -------------------------------------------------------------------------- */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.drawer--open .drawer__resource-card {
    animation: fadeIn 0.4s ease forwards;
    opacity: 0;
}

.drawer--open .drawer__resource-card:nth-child(1) { animation-delay: 0.1s; }
.drawer--open .drawer__resource-card:nth-child(2) { animation-delay: 0.15s; }
.drawer--open .drawer__resource-card:nth-child(3) { animation-delay: 0.2s; }
.drawer--open .drawer__resource-card:nth-child(4) { animation-delay: 0.25s; }
.drawer--open .drawer__resource-card:nth-child(5) { animation-delay: 0.3s; }
.drawer--open .drawer__resource-card:nth-child(6) { animation-delay: 0.35s; }

/* -----------------------------------------------------------------------------
 * Reduced Motion
 * -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .drawer-backdrop {
        transition: none;
    }

    .drawer {
        transition: none;
    }

    .drawer--open .drawer__resource-card {
        animation: none;
        opacity: 1;
    }

    .drawer__close:hover {
        transform: none;
    }

    .drawer__status-button:hover {
        transform: none;
    }

    .drawer__resource-card:hover {
        transform: none;
    }
}