/* =====================================================
   RICHMINDS MASTERY — Design System
   Palette sourced from brand logo:
   --ink (bg), --surface (cards), --gold (accent),
   --bronze (depth/hover), --paper (text on dark)
   ===================================================== */

:root {
    --ink: #0D0E12;
    --ink-soft: #14161D;
    --surface: #171A23;
    --surface-raised: #1D212C;
    --border: #2A2E3A;
    --gold: #EED054;
    --gold-soft: #D9BB57;
    --bronze: #A6792B;
    --bronze-dark: #6B4E1C;
    --paper: #F5F1E8;
    --paper-dim: #B8B4AC;
    --error-bg: #2A1416;
    --error-text: #F3A9A9;
    --success-bg: #14241A;
    --success-text: #8FD9A8;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    --radius: 10px;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
    --shadow-gold: 0 0 0 1px rgba(238, 208, 84, 0.15), 0 8px 24px rgba(0, 0, 0, 0.4);
}

* {
    box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--ink);
    background-image:
        radial-gradient(circle at 15% 0%, rgba(238, 208, 84, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 85% 100%, rgba(166, 121, 43, 0.07) 0%, transparent 50%);
    color: var(--paper);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--paper);
    letter-spacing: 0.01em;
    margin-top: 0;
}

h1 { font-size: 2.1rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

a {
    color: var(--gold);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--gold-soft);
    text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* ---------- Navbar ---------- */

.navbar {
    background: rgba(13, 14, 18, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 16px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.navbar .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 19px;
    color: var(--paper);
}

.navbar .brand img {
    height: 36px;
    width: 36px;
    border-radius: 50%;
}

.navbar .nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.navbar .nav-links a {
    color: var(--paper-dim);
    font-size: 14.5px;
    font-weight: 500;
}

.navbar .nav-links a:hover {
    color: var(--gold);
    text-decoration: none;
}

.navbar .nav-links .greeting {
    color: var(--paper-dim);
    font-size: 14.5px;
}

/* ---------- Cards ---------- */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-card);
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

a.card-link {
    display: block;
}

.card-interactive {
    cursor: default;
}

.card-interactive:hover {
    transform: translateY(-2px);
    border-color: var(--bronze);
    box-shadow: var(--shadow-gold);
}

/* corner bracket accent — echoes the bracket in the RM logo mark */
.card::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    width: 14px;
    height: 14px;
    border-top: 2px solid var(--gold);
    border-left: 2px solid var(--gold);
    opacity: 0.55;
    border-top-left-radius: 4px;
}

.card-flush::before {
    display: none;
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--gold) 0%, var(--bronze) 100%);
    color: #1A1306;
    border: none;
    padding: 11px 22px;
    border-radius: 7px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(238, 208, 84, 0.25);
    filter: brightness(1.06);
    text-decoration: none;
}

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

.btn-danger {
    background: linear-gradient(135deg, #D96C6C 0%, #A33E3E 100%);
    color: #2A0E0E;
}

.btn-danger:hover {
    box-shadow: 0 6px 16px rgba(217, 108, 108, 0.25);
}

.btn-secondary {
    background: transparent;
    color: var(--paper);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--bronze);
    color: var(--gold);
    box-shadow: none;
    transform: none;
}

/* ---------- Forms ---------- */

form {
    max-width: 480px;
}

label {
    display: block;
    margin-bottom: 7px;
    font-weight: 600;
    font-size: 14px;
    color: var(--paper-dim);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="number"],
input[type="tel"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 11px 14px;
    margin-bottom: 18px;
    background: var(--ink-soft);
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 15px;
    color: var(--paper);
    font-family: var(--font-body);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input::placeholder,
textarea::placeholder {
    color: #5C5A56;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(238, 208, 84, 0.12);
}

textarea {
    resize: vertical;
    min-height: 90px;
}

/* ---------- Alerts ---------- */

.alert {
    padding: 13px 18px;
    border-radius: 7px;
    margin-bottom: 18px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert-error {
    background: var(--error-bg);
    color: var(--error-text);
    border-color: rgba(243, 169, 169, 0.25);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
    border-color: rgba(143, 217, 168, 0.25);
}

/* ---------- Tables ---------- */

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 14px;
}

th, td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 14.5px;
}

th {
    background: var(--ink-soft);
    color: var(--paper-dim);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
}

tr:hover td {
    background: rgba(238, 208, 84, 0.03);
}

/* ---------- Lessons list ---------- */

.lesson-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lesson-list li {
    border-bottom: 1px solid var(--border);
}

.lesson-list li:last-child {
    border-bottom: none;
}

.lesson-list a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 4px;
    font-weight: 500;
    color: var(--paper);
    border-radius: 6px;
    transition: background 0.15s ease, padding-left 0.15s ease;
}

.lesson-list a:hover {
    background: rgba(238, 208, 84, 0.06);
    padding-left: 10px;
    text-decoration: none;
    color: var(--gold);
}

.lesson-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--bronze);
    color: var(--gold);
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}

.lesson-list a.current .lesson-number {
    background: var(--gold);
    color: #1A1306;
    border-color: var(--gold);
}

.lesson-list a.current {
    color: var(--gold);
    font-weight: 700;
}

/* ---------- Video ---------- */

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius);
    margin-bottom: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---------- Misc ---------- */

.empty-state {
    color: var(--paper-dim);
    text-align: center;
    padding: 48px 20px;
    font-size: 15px;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.divider-gold {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, var(--gold) 0%, transparent 60%);
    margin: 28px 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--ink-soft);
    border: 1px solid var(--border);
    color: var(--paper-dim);
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 100px;
}

.progress-track {
    width: 100%;
    height: 6px;
    background: var(--ink-soft);
    border-radius: 100px;
    overflow: hidden;
    margin-top: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--bronze), var(--gold));
    border-radius: 100px;
    transition: width 0.4s ease;
}

/* ---------- Student Profile ---------- */

.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 8px;
}

.profile-field {
    background: var(--ink-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.profile-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--paper-dim);
    font-weight: 600;
}

.profile-value {
    font-size: 15px;
    color: var(--paper);
    word-break: break-word;
    line-height: 1.5;
}

@media (max-width: 640px) {
    .profile-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

/* ---------- Fix: number inputs full width on mobile ---------- */
input[type="number"],
input[type="tel"] {
    width: 100%;
}



.feeling-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 100px;
    background: linear-gradient(90deg, #D96C6C, var(--bronze), var(--gold), #8FD9A8, #2E7D32);
    outline: none;
    margin: 8px 0;
}

.feeling-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--paper);
    border: 3px solid var(--gold);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.feeling-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--paper);
    border: 3px solid var(--gold);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

/* ---------- Hero (landing page) ---------- */

.hero {
    text-align: center;
    padding: 80px 24px 64px;
    position: relative;
    overflow: hidden;
}

.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 28px;
    box-shadow: 0 0 0 1px rgba(238, 208, 84, 0.25), 0 0 60px rgba(238, 208, 84, 0.15), 0 12px 32px rgba(0, 0, 0, 0.5);
}

.hero .eyebrow-divider {
    width: 56px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 10px auto 18px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 18px;
    line-height: 1.15;
}

.hero h1 .gold-text {
    color: var(--gold);
}

.hero p {
    color: var(--paper-dim);
    font-size: 17px;
    max-width: 520px;
    margin: 0 auto 32px;
}

.hero .actions {
    justify-content: center;
    flex-direction: column;
    align-items: center;
    max-width: 360px;
    margin: 0 auto;
}

.hero .actions .btn,
.hero .actions .btn-secondary {
    width: 100%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.hero-glow {
    position: absolute;
    bottom: -40px;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse 60% 100% at 70% 100%, rgba(238, 208, 84, 0.12) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.45s ease both;
}

/* ---------- Hamburger nav toggle (shown on mobile, hidden on desktop) ---------- */

.nav-toggle {
    display: none; /* hidden by default; shown via media query on mobile */
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    flex-shrink: 0;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--paper);
    border-radius: 2px;
    transition: all 0.25s ease;
}

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

@media (max-width: 640px) {

    /* --- Typography --- */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.3rem; }

    /* --- Container --- */
    .container {
        padding: 20px 16px;
    }

    /* --- Navbar: hamburger menu --- */
    .navbar {
        padding: 14px 18px;
        position: relative;
    }

    /* Show the hamburger button on mobile */
    .nav-toggle {
        display: flex;
    }

    /* Nav links: hidden by default, revealed when .nav-open is on navbar */
    .navbar .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(13, 14, 18, 0.98);
        border-bottom: 1px solid var(--border);
        padding: 12px 18px 18px;
        z-index: 100;
        backdrop-filter: blur(10px);
    }

    .navbar.nav-open .nav-links {
        display: flex;
    }

    .navbar .nav-links a,
    .navbar .nav-links .greeting,
    .navbar .nav-links span,
    .navbar .nav-links button {
        padding: 10px 0;
        border-bottom: 1px solid var(--border);
        width: 100%;
        font-size: 15px;
    }

    .navbar .nav-links > *:last-child {
        border-bottom: none;
    }

    /* Animated hamburger → X on open */
    .navbar.nav-open .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .navbar.nav-open .nav-toggle span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .navbar.nav-open .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* --- Hero --- */
    .hero {
        padding: 48px 16px 40px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-logo {
        width: 90px;
        height: 90px;
    }

    /* --- Cards --- */
    .card {
        padding: 18px 16px;
    }

    /* --- Forms: remove the max-width constraint inside cards on mobile
         so forms use full width rather than being capped at 480px --- */
    .card form {
        max-width: 100%;
    }

    /* Number inputs are often tiny on mobile — ensure they stay full width */
    input[type="number"] {
        width: 100%;
    }

    /* --- Buttons: stack full-width in action groups --- */
    .actions {
        flex-direction: column;
    }

    .actions .btn,
    .actions .btn-secondary,
    .actions .btn-danger {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    /* --- Tables: horizontal scroll instead of overflowing --- */
    .table-scroll {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table-scroll table {
        margin-top: 0;
        min-width: 540px;
    }

    /* Reduce table cell padding on mobile so more fits */
    th, td {
        padding: 10px 10px;
        font-size: 13.5px;
    }

    /* --- Course cards: stack thumbnail above content on mobile --- */
    .course-card-inner {
        flex-direction: column !important;
        gap: 12px !important;
    }

    /* Make ALL images and thumbnail containers inside course cards full width */
    .course-card-inner img {
        width: 100% !important;
        height: 200px !important;
        flex-shrink: unset !important;
    }

    /* Fix locked course thumbnail wrapper (has inline width/height) */
    .course-card-inner > div:first-child,
    .course-thumb-wrapper {
        width: 100% !important;
        height: 200px !important;
        flex-shrink: unset !important;
    }

    /* Clamp course description to 3 lines on mobile to avoid overwhelming text */
    .course-card-inner p {
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* --- Packages tab buttons: wrap gracefully --- */
    .actions.package-tabs {
        flex-wrap: wrap;
    }

    .actions.package-tabs .btn,
    .actions.package-tabs .btn-secondary {
        width: auto;
        flex: 1 1 auto;
        text-align: center;
        justify-content: center;
    }
}