/* ── HEADER OVERRIDE FOR DARK HERO ── */
header:not(.scrolled) .logo,
header:not(.scrolled) .nav-links a,
header:not(.scrolled) .search-trigger i { color: #fff !important; }
header:not(.scrolled) .logo span { color: #fff !important; }
header:not(.scrolled) .btn-outline { border-color: #fff !important; color: #fff !important; }
header:not(.scrolled) .btn-primary { background: #fff !important; color: var(--primary-color) !important; }
header:not(.scrolled) .nav-links a:hover { color: #fff !important; opacity: 0.7 !important; }
header:not(.scrolled) .btn-outline:hover { background: #fff !important; color: var(--primary-color) !important; }
header:not(.scrolled) .search-trigger:hover i { color: #000 !important; }

/* ===== HERO ===== */
.appt-hero {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1a0000 0%, #4a0000 30%, #800000 60%, #6b0000 100%);
    overflow: hidden;
    color: #fff;
}
.appt-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/images/school-logo.jpeg') center/cover;
    opacity: 0.08;
    pointer-events: none;
}
.appt-hero-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}
.appt-hero-orb-1 {
    width: 500px; height: 500px;
    top: -180px; right: -120px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 65%);
    animation: apptOrbFloat 10s ease-in-out infinite alternate;
}
.appt-hero-orb-2 {
    width: 350px; height: 350px;
    bottom: -120px; left: -80px;
    background: radial-gradient(circle, rgba(255,100,100,0.07) 0%, transparent 65%);
    animation: apptOrbFloat 8s ease-in-out infinite alternate-reverse;
}
@keyframes apptOrbFloat {
    0%   { transform: translateY(0) scale(1); }
    100% { transform: translateY(-25px) scale(1.05); }
}
.appt-hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 100px;
    background: linear-gradient(to top, rgba(255,255,255,0.03) 0%, transparent 100%);
    pointer-events: none;
}
.appt-hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    padding: 140px 0 90px;
    position: relative;
    z-index: 2;
}
.appt-hero-content { max-width: 650px; flex: 1; }
.appt-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.10);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 50px;
    padding: 10px 24px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 24px;
    color: #ffd4d4;
    animation: apptFadeUp 0.8s ease both;
}
.appt-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    animation: apptFadeUp 0.8s ease 0.15s both;
}
.appt-hero h1 span { color: #ffd4d4; }
.appt-hero-desc {
    font-size: 1.1rem;
    opacity: 0.88;
    max-width: 540px;
    line-height: 1.75;
    font-weight: 300;
    animation: apptFadeUp 0.8s ease 0.3s both;
}
.appt-hero-separator {
    width: 70px; height: 4px;
    background: linear-gradient(90deg, #ffd4d4, transparent);
    border-radius: 2px;
    margin-bottom: 24px;
    animation: apptFadeUp 0.8s ease 0.1s both;
}
.appt-hero-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: apptFadeUp 0.8s ease 0.4s both;
}
.appt-stat-bubble {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: 20px;
    padding: 22px 28px;
    text-align: center;
    min-width: 150px;
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
}
.appt-stat-bubble:hover {
    transform: scale(1.05) translateY(-3px);
    background: rgba(255,255,255,0.12);
}
.appt-stat-bubble .stat-num {
    font-size: 2.2rem; font-weight: 900; color: #fff;
    font-family: var(--font-heading); line-height: 1; margin-bottom: 4px;
}
.appt-stat-bubble .stat-label {
    font-size: 0.72rem; color: rgba(255,255,255,0.7);
    text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600;
}
@keyframes apptFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== TEACHERS SECTION ===== */
.appt-teachers-section {
    background: linear-gradient(160deg, #fdf8f8 0%, #faf0f0 25%, #f8eded 50%, #faf2f2 75%, #fdfafa 100%);
    position: relative;
    overflow: hidden;
    padding: 100px 0 120px;
}
.appt-teachers-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(128,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(128,0,0,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.appt-section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}
.appt-section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    color: #1a1a2e;
    font-weight: 900;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    display: inline-block;
    position: relative;
}
.appt-section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px; left: 50%;
    transform: translateX(-50%);
    width: 70px; height: 4px;
    background: linear-gradient(90deg, #800000, #b91c1c);
    border-radius: 2px;
}
.appt-section-subtitle {
    color: #8b8b8b;
    font-size: 1.05rem;
    margin-top: 24px;
    max-width: 520px;
    margin-left: auto; margin-right: auto;
    line-height: 1.7;
}

/* Filter Bar */
.appt-filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}
.appt-filter-btn {
    padding: 10px 24px;
    border: 2px solid rgba(128,0,0,0.15);
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(8px);
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}
.appt-filter-btn:hover, .appt-filter-btn.active {
    background: #800000;
    color: #fff;
    border-color: #800000;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(128,0,0,0.2);
}

/* Search Toolbar */
.appt-search-toolbar {
    max-width: 800px; margin: 0 auto 40px;
    display: flex; flex-direction: column; align-items: center; gap: 15px;
    position: relative; z-index: 2;
}
.appt-search-box {
    position: relative; width: 100%; max-width: 480px;
}
.appt-search-box .as-icon {
    position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
    color: #a0a0a0; font-size: 1.1rem; transition: color 0.3s;
}
.appt-search-box:focus-within .as-icon { color: #800000; }
.appt-search-box input {
    width: 100%; padding: 14px 45px 14px 50px;
    border: 2px solid rgba(128,0,0,0.1); border-radius: 50px;
    font-size: 1rem; outline: none; background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px); transition: all 0.3s;
}
.appt-search-box input:focus {
    border-color: #800000; box-shadow: 0 4px 15px rgba(128,0,0,0.1);
}
.appt-search-clear {
    position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
    width: 30px; height: 30px; border-radius: 50%; background: #f0f0f0;
    border: none; color: #888; cursor: pointer; display: none;
    align-items: center; justify-content: center; font-size: 0.8rem;
    transition: all 0.2s;
}
.appt-search-clear:hover { background: #800000; color: #fff; }
.appt-search-count {
    font-size: 0.85rem; color: #800000; font-weight: 600;
    background: rgba(128,0,0,0.05); padding: 6px 16px; border-radius: 20px;
}
.appt-no-results {
    text-align: center; color: #888; font-size: 1.1rem;
    padding: 40px; display: none;
}

/* Carousel Styles */
.appt-carousel-wrapper {
    position: relative; padding: 0 60px; max-width: 1200px; margin: 0 auto;
    z-index: 2;
}
.appt-carousel-viewport { overflow: hidden; border-radius: 24px; padding: 10px 0; margin: -10px 0; }
.appt-carousel-track {
    display: flex; gap: 30px; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}
.carousel-slide {
    width: 340px; flex-shrink: 0;
}
.appt-carousel-arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 50px; height: 50px; border-radius: 16px;
    background: rgba(255,255,255,0.9); backdrop-filter: blur(10px);
    border: 1px solid rgba(128,0,0,0.1); box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    color: #800000; display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 1.1rem; transition: all 0.3s; z-index: 10;
}
.appt-carousel-arrow:hover { background: #800000; color: #fff; transform: translateY(-50%) scale(1.05); }
.appt-carousel-arrow:disabled { opacity: 0.3; cursor: not-allowed; }
.appt-arrow-left { left: 0; }
.appt-arrow-right { right: 0; }

.appt-carousel-dots {
    display: flex; justify-content: center; gap: 8px; margin-top: 30px;
}
.appt-carousel-dots button {
    width: 10px; height: 10px; border-radius: 50%;
    background: rgba(128,0,0,0.15); border: none; cursor: pointer; padding: 0;
    transition: all 0.3s;
}
.appt-carousel-dots button.active {
    background: #800000; width: 25px; border-radius: 5px;
}

/* Availability Badge */
.appt-status {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
    padding: 4px 10px; border-radius: 50px; margin-top: 8px;
}
.status-available { background: rgba(16,185,129,0.1); color: #059669; border: 1px solid rgba(16,185,129,0.2); }
.status-available .status-dot { width: 6px; height: 6px; border-radius: 50%; background: #10b981; animation: pulseAvail 2s infinite; }
.status-busy { background: rgba(245,158,11,0.1); color: #d97706; border: 1px solid rgba(245,158,11,0.2); }
.status-busy .status-dot { width: 6px; height: 6px; border-radius: 50%; background: #f59e0b; }
@keyframes pulseAvail {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
    50% { box-shadow: 0 0 0 4px rgba(16,185,129,0); }
}
.appt-card {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 36px 30px 30px;
    border: 1px solid rgba(128,0,0,0.08);
    box-shadow: 0 8px 32px rgba(0,0,0,0.04), inset 0 0 0 1px rgba(255,255,255,0.7);
    transition: all 0.5s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(24px);
}
.appt-card.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.appt-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #800000, #b91c1c, #c0392b, #800000);
    background-size: 300% 100%;
    animation: shimmerBar 4s ease-in-out infinite;
}
@keyframes shimmerBar {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
.appt-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.08), 0 0 0 1px rgba(128,0,0,0.12);
    border-color: rgba(128,0,0,0.16);
}
.appt-card.is-visible:hover { transform: translateY(-10px); }

.appt-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}
.appt-card-avatar {
    width: 64px; height: 64px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(145deg, #800000, #b91c1c, #800000);
    background-size: 300% 300%;
    animation: ringShimmer 5s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes ringShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 100%; }
}
.appt-card-avatar img,
.appt-card-avatar .appt-avatar-placeholder {
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: #fdfafa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #800000;
    border: 3px solid white;
}
.appt-card-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: #1a1a2e;
    margin-bottom: 2px;
}
.appt-card-subject {
    font-size: 0.82rem;
    color: #800000;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.appt-card-slots {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(128,0,0,0.08);
}
.appt-card-slots-title {
    font-size: 0.78rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-bottom: 12px;
}
.appt-slot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.appt-slot-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(128,0,0,0.06);
    border: 1px solid rgba(128,0,0,0.1);
    border-radius: 20px;
    font-size: 0.78rem;
    color: #800000;
    font-weight: 600;
}
.appt-slot-tag i { font-size: 0.7rem; opacity: 0.6; }

.appt-card-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #800000, #a00000);
    color: #fff;
    border: none;
    border-radius: 14px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.35s ease;
    margin-top: 8px;
}
.appt-card-btn:hover {
    background: linear-gradient(135deg, #600000, #800000);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(128,0,0,0.25);
}
.appt-card-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.appt-no-slots {
    text-align: center;
    color: #aaa;
    font-size: 0.9rem;
    padding: 20px;
    font-style: italic;
}

/* ===== MODAL ===== */
.appt-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}
.appt-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.appt-modal {
    background: #fff;
    border-radius: 28px;
    width: 100%;
    max-width: 580px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.92) translateY(20px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 30px 80px rgba(0,0,0,0.15);
    position: relative;
}
.appt-modal-overlay.active .appt-modal {
    transform: scale(1) translateY(0);
}
.appt-modal-header {
    padding: 32px 32px 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}
.appt-modal-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: #1a1a2e;
}
.appt-modal-subtitle {
    font-size: 0.9rem;
    color: #888;
    margin-top: 4px;
}
.appt-modal-close {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: none;
    background: #f5f5f5;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #666;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.appt-modal-close:hover {
    background: #800000;
    color: #fff;
    transform: rotate(90deg);
}
.appt-modal-body { padding: 24px 32px 32px; }

.appt-form-group {
    margin-bottom: 18px;
}
.appt-form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: #444;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}
.appt-form-label .required { color: #e74c3c; }
.appt-form-input,
.appt-form-select,
.appt-form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #eee;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: #333;
    background: #fafafa;
    transition: all 0.3s ease;
    outline: none;
    box-sizing: border-box;
}
.appt-form-input:focus,
.appt-form-select:focus,
.appt-form-textarea:focus {
    border-color: #800000;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(128,0,0,0.08);
}
.appt-form-textarea { resize: vertical; min-height: 80px; }
.appt-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

/* Date Picker Slots */
.appt-date-picker {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}
.appt-date-btn {
    padding: 10px 16px;
    border: 2px solid #eee;
    background: #fafafa;
    border-radius: 12px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    font-weight: 600;
    color: #555;
    flex: 1;
    min-width: 100px;
}
.appt-date-btn:hover { border-color: rgba(128,0,0,0.3); }
.appt-date-btn.selected {
    background: #800000;
    color: #fff;
    border-color: #800000;
}
.appt-date-btn .day-name { display: block; font-weight: 700; }
.appt-date-btn .day-date { display: block; font-size: 0.72rem; opacity: 0.7; margin-top: 2px; }

/* Time Slots */
.appt-time-slots {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 40px;
}
.appt-time-btn {
    padding: 10px 18px;
    border: 2px solid #eee;
    background: #fafafa;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: #555;
    transition: all 0.3s ease;
}
.appt-time-btn:hover:not(.booked) { border-color: rgba(128,0,0,0.3); }
.appt-time-btn.selected {
    background: #800000;
    color: #fff;
    border-color: #800000;
}
.appt-time-btn.booked {
    opacity: 0.4;
    cursor: not-allowed;
    text-decoration: line-through;
    background: #f0f0f0;
}
.appt-time-loading,
.appt-time-empty {
    font-size: 0.85rem;
    color: #aaa;
    padding: 10px;
    font-style: italic;
}

/* Submit */
.appt-submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #800000, #a00000);
    color: #fff;
    border: none;
    border-radius: 14px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.35s ease;
    margin-top: 10px;
}
.appt-submit-btn:hover {
    background: linear-gradient(135deg, #600000, #800000);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(128,0,0,0.25);
}
.appt-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}
.appt-form-error {
    color: #e74c3c;
    font-size: 0.8rem;
    margin-top: 4px;
    display: none;
}
.appt-form-error.show { display: block; }

/* Success Modal */
.appt-success-content {
    text-align: center;
    padding: 40px 32px;
}
.appt-success-icon {
    width: 80px; height: 80px;
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2rem;
    color: #fff;
    animation: successPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes successPop {
    0% { transform: scale(0); }
    100% { transform: scale(1); }
}
.appt-success-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 12px;
}
.appt-success-details {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 20px;
    margin: 20px 0;
    text-align: left;
}
.appt-success-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}
.appt-success-row:last-child { border-bottom: none; }
.appt-success-row .label { color: #888; font-weight: 500; }
.appt-success-row .value { color: #333; font-weight: 700; }
.appt-success-close {
    padding: 14px 40px;
    background: #800000;
    color: #fff;
    border: none;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}
.appt-success-close:hover {
    background: #600000;
    transform: translateY(-2px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .appt-hero-inner { flex-direction: column; text-align: center; padding: 120px 0 70px; }
    .appt-hero-desc { margin: 0 auto; }
    .appt-hero-separator { margin: 0 auto 24px; }
    .appt-hero-stats { flex-direction: row; justify-content: center; }
}
@media (max-width: 768px) {
    .appt-grid { grid-template-columns: 1fr; }
    .appt-form-row { grid-template-columns: 1fr; }
    .appt-modal { border-radius: 20px; margin: 10px; }
    .appt-modal-header { padding: 24px 24px 0; }
    .appt-modal-body { padding: 20px 24px 24px; }
    .appt-hero h1 { font-size: 2rem; }
    .appt-section-header h2 { font-size: 2rem; }
    .appt-date-picker { gap: 6px; }
    .appt-date-btn { min-width: 80px; padding: 8px 10px; font-size: 0.75rem; }
}
@media (max-width: 480px) {
    .appt-hero-stats { flex-direction: column; align-items: center; }
    .appt-card { padding: 28px 22px 24px; }
}