@import url("https://fonts.cdnfonts.com/css/thegoodmonolith");
@import url("https://fonts.cdnfonts.com/css/pp-neue-montreal");

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "TheGoodMonolith", monospace;
    background-color: #111;
    color: #f0f0f0;
    overflow-x: hidden;
    position: relative;
}

/* REMOVED: Dust/Scratches background effect (body::after) */
/* REMOVED: Animated noise effect (body::before) */

p {
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
}

#canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    cursor: grab;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 5;
}

#canvas:active {
    cursor: grabbing;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

/* Top Navigation Bar - Simplified backgrounds */
.top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 230, 0, 0.2);
    z-index: 8;
    padding: 1.5rem 0;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: all;
}

.top-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    position: relative;
    z-index: 51;
}

.brand-title {
    display: flex;
    font-size: 2rem;
    flex-direction: column;
    position: relative;
    z-index: 52;
}

.brand-title::before {
    content: "";
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #ffe600;
    border-radius: 50%;
}

.brand-title span {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 1.2rem;
    color: #ffffff;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin: 0;
}

.brand-title small {
    font-family: "TheGoodMonolith", monospace;
    font-size: 10px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.nav-menu {
    display: flex;
    gap: 0;
    align-items: center;
    position: relative;
    z-index: 52;
}

/* Slide titles container */
#titles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 6;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide-title {
    position: absolute;
    color: white;
    font-weight: 400;
    pointer-events: all;
    transition: opacity 0.3s ease, filter 0.3s ease, transform 0.3s ease;
    cursor: pointer;
    z-index: 10;
    user-select: none;
}

.slide-title:hover {
    transform: scale(1.05);
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 50%;
    right: 30px;
    transform: translateY(-50%);
    z-index: 7;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.nav-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-right: none;
    color: #cccccc;
    padding: 1rem 1.5rem;
    font-family: "TheGoodMonolith", monospace;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    z-index: 53;
    min-width: 120px;
    text-align: left;
}

.nav-btn:last-child {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #ffe600;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

/* KEPT: Essential ripple effect for navigation buttons */
.nav-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 230, 0, 0.05), transparent);
    transition: left 0.4s ease;
}

.nav-btn:hover::after {
    left: 100%;
}

.nav-btn:hover,
.nav-btn.active {
    color: #ffe600;
    background: rgba(255, 230, 0, 0.08);
    border-color: rgba(255, 230, 0, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 230, 0, 0.2);
}

.nav-btn:hover::before,
.nav-btn.active::before {
    transform: scaleX(1);
}

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

.nav-btn span {
    display: block;
    color: inherit;
    font-size: 12px;
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.nav-btn small {
    display: block;
    color: #999;
    font-size: 9px;
    opacity: 0.8;
}

.nav-btn:hover span,
.nav-btn.active span {
    color: #ffe600;
}

/* Instructions */
.instructions {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 7;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.instructions p {
    font-family: "TheGoodMonolith", monospace;
    font-size: 11px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
}

/* Modal Styles - Simplified backgrounds */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    pointer-events: none;
    overflow-y: auto;
    padding: 2rem;
}

.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-content {
    background: rgba(17, 17, 17, 0.95);
    border: 1px solid #333;
    backdrop-filter: blur(20px);
    padding: 0;
    width: 100%;
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 
                0 0 0 1px rgba(255, 230, 0, 0.1);
    transform: translateY(30px) scale(0.95);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    margin: auto;
    display: flex;
    flex-direction: column;
}

.modal:not(.hidden) .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 2.5rem 2rem 2rem 2rem;
    border-bottom: 1px solid rgba(255, 230, 0, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 230, 0, 0.05);
    position: relative;
    flex-shrink: 0;
}

.modal-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: #ffe600;
}

.modal-header h3 {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 2rem;
    color: #ffffff;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin: 0;
}

.close-btn {
    background: transparent;
    border: 1px solid #333;
    color: #666;
    width: 50px;
    height: 50px;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

/* KEPT: Essential ripple effect for close button */
.close-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #ffe600;
    transition: left 0.3s ease;
    z-index: -1;
}

.close-btn:hover::before {
    left: 0;
}

.close-btn:hover {
    border-color: #ffe600;
    color: #000;
    transform: scale(1.05);
}

/* Brand Grid */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
}

.brand-card {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid #333;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* KEPT: Essential ripple effect for brand cards */
.brand-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 230, 0, 0.1), transparent);
    transition: left 0.5s ease;
}

.brand-card:hover::before {
    left: 100%;
}

.brand-card:hover {
    border-color: #ffe600;
    transform: translateY(-5px);
    background: rgba(0, 0, 0, 0.8);
}

.brand-card h4 {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 1.5rem;
    color: #ffe600;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.brand-card p {
    color: #cccccc;
    font-size: 13px;
    line-height: 1.6;
    font-family: "TheGoodMonolith", monospace;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.title-text {
    font-family: "PP Neue Montreal", sans-serif;
    text-transform: uppercase;
    font-size: 6vw;
    line-height: 0.9;
    font-weight: 400;
    letter-spacing: -0.03em;
    margin: 0;
    white-space: nowrap;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.9), 0 0 20px rgba(0, 0, 0, 0.5);
    color: #ffffff;
}

.title-number {
    font-family: "TheGoodMonolith", monospace;
    font-size: 0.8vw;
    margin: 0;
    position: relative;
    padding-top: 10px;
    display: flex;
    align-items: center;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.9);
    color: #ffffff;
}

.title-number::before {
    content: "";
    display: block;
    width: 40px;
    height: 3px;
    background-color: #ffe600;
    margin-right: 10px;
    box-shadow: 0 0 10px rgba(255, 230, 0, 0.5);
}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.circle-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin-bottom: 30px;
}

.initializing-text-container {
    position: relative;
    margin-top: 30px;
    overflow: hidden;
}

.initializing-text {
    font-family: "TheGoodMonolith", monospace;
    color: #fff;
    font-size: 12px;
    letter-spacing: 3px;
    position: relative;
    z-index: 2;
    mix-blend-mode: difference;
}

.initializing-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background-color: #ffe600;
    z-index: 1;
}

.dot {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #ffe600;
    opacity: 0;
}

@keyframes fadeIn {
    0% { opacity: 0; transform: scale(0); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes fadeOut {
    0% { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(0); }
}

@keyframes pulse {
    0% { transform: scale(0.8); }
    50% { transform: scale(1.2); }
    100% { transform: scale(0.8); }
}

/* Container and grid styles */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 4;
}

.filter-container {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    padding: 0 2rem;
}

.brand-filter {
    padding: 1.2rem 3rem 1.2rem 2rem;
    border: 1px solid rgba(255, 230, 0, 0.3);
    background: rgba(0, 0, 0, 0.8);
    font-size: 14px;
    font-family: "TheGoodMonolith", monospace;
    color: #ffffff;
    outline: none;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    backdrop-filter: blur(15px);
    position: relative;
    cursor: pointer;
    min-width: 200px;
    border-radius: 0;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.brand-filter::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #ffe600;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.brand-filter::after {
    content: "▼";
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #ffe600;
    font-size: 12px;
    pointer-events: none;
    transition: transform 0.3s ease;
}

.brand-filter:focus::before,
.brand-filter:hover::before {
    transform: scaleY(1);
}

.brand-filter:focus::after,
.brand-filter:hover::after {
    transform: translateY(-50%) rotate(180deg);
}

.brand-filter:focus,
.brand-filter:hover {
    background: rgba(255, 230, 0, 0.1);
    border-color: #ffe600;
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(255, 230, 0, 0.2);
}

.brand-filter option {
    background: #111;
    color: #ffffff;
    padding: 1rem;
    font-weight: 700;
    border: none;
    font-family: "TheGoodMonolith", monospace;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.brand-filter option:checked {
    background: #ffe600;
    color: #000;
}

.session-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    max-height: calc(90vh - 200px);
    overflow-y: auto;
    overflow-x: hidden;
    margin: 0;
}

/* Custom scrollbar */
.session-grid::-webkit-scrollbar {
    width: 6px;
}

.session-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.session-grid::-webkit-scrollbar-thumb {
    background: #ffe600;
    border-radius: 3px;
}

.session-grid::-webkit-scrollbar-thumb:hover {
    background: #fff;
}

.card {
    background: rgba(0, 0, 0, 0.6);
    padding: 2rem;
    border: 1px solid #333;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* KEPT: Essential ripple effect for cards */
.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 230, 0, 0.1), transparent);
    transition: left 0.5s ease;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    border-color: #ffe600;
    transform: translateY(-5px);
    background: rgba(0, 0, 0, 0.8);
}

.card h4 {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.card p {
    color: #cccccc;
    margin-bottom: 1.5rem;
    font-size: 13px;
    line-height: 1.6;
    font-family: "TheGoodMonolith", monospace;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn {
    display: inline-block;
    background: transparent;
    color: #ffe600;
    padding: 1rem 2rem;
    border: 1px solid #ffe600;
    cursor: pointer;
    font-family: "TheGoodMonolith", monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

/* KEPT: Essential ripple effect for buttons */
.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #ffe600;
    transition: left 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: #000;
}

/* Footer */
footer {
    position: fixed;
    width: 100vw;
    padding: 2em;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    z-index: 5;
    mix-blend-mode: difference;
    bottom: 0;
    right: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

footer p {
    font-family: "TheGoodMonolith", monospace;
    font-size: 11px;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

footer a {
    color: #ffe600;
    text-decoration: none;
    margin: 0 1rem;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

footer a:hover {
    border-bottom-color: #ffe600;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Success Modal Styles */
.success-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(10px);
}

.success-modal {
    background: rgba(17, 17, 17, 0.95);
    padding: 3rem;
    border: 1px solid #ffe600;
    text-align: center;
    max-width: 500px;
    margin: 1rem;
    backdrop-filter: blur(15px);
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ffe600;
}

.success-modal h3 {
    font-family: "PP Neue Montreal", sans-serif;
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.success-modal p {
    color: #cccccc;
    margin-bottom: 1rem;
    line-height: 1.6;
    font-family: "TheGoodMonolith", monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Booking Form Styles */
.booking-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    padding: 2rem;
    overflow-y: auto;
}

.booking-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.booking-modal {
    background: rgba(17, 17, 17, 0.95);
    border: 1px solid #333;
    backdrop-filter: blur(20px);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 
                0 0 0 1px rgba(255, 230, 0, 0.1);
    transform: translateY(30px) scale(0.95);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.booking-modal-overlay.active .booking-modal {
    transform: translateY(0) scale(1);
}

.booking-header {
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 1px solid rgba(255, 230, 0, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 230, 0, 0.05);
    position: relative;
}

.booking-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: #ffe600;
}

.booking-header h2 {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 1.8rem;
    color: #ffffff;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin: 0;
}

.close-booking-btn {
    background: transparent;
    border: 1px solid #333;
    color: #666;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* KEPT: Essential ripple effect for booking close button */
.close-booking-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #ffe600;
    transition: left 0.3s ease;
    z-index: -1;
}

.close-booking-btn:hover::before {
    left: 0;
}

.close-booking-btn:hover {
    border-color: #ffe600;
    color: #000;
    transform: scale(1.05);
}

.booking-content {
    padding: 2rem;
}

.course-details {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid #333;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid #ffe600;
}

.course-details h3 {
    font-family: "PP Neue Montreal", sans-serif;
    font-size: 1.3rem;
    color: #ffe600;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.course-details p {
    color: #cccccc;
    margin-bottom: 0.5rem;
    font-size: 13px;
    line-height: 1.6;
    font-family: "TheGoodMonolith", monospace;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-details p:last-child {
    margin-bottom: 0;
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: "TheGoodMonolith", monospace;
    font-size: 12px;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    padding: 1rem 1.5rem;
    border: 1px solid #333;
    background: rgba(0, 0, 0, 0.5);
    font-size: 14px;
    font-family: "TheGoodMonolith", monospace;
    color: #ffffff;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #ffe600;
    background: rgba(255, 230, 0, 0.1);
    box-shadow: 0 0 0 2px rgba(255, 230, 0, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #666;
    font-style: italic;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: flex-end;
}

.btn-cancel,
.btn-submit {
    padding: 1rem 2rem;
    border: 1px solid;
    cursor: pointer;
    font-family: "TheGoodMonolith", monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 120px;
}

.btn-cancel {
    background: transparent;
    color: #666;
    border-color: #333;
}

/* KEPT: Essential ripple effect for cancel button */
.btn-cancel::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #333;
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-cancel:hover::before {
    left: 0;
}

.btn-cancel:hover {
    color: #ffffff;
    border-color: #666;
}

.btn-submit {
    background: transparent;
    color: #ffe600;
    border-color: #ffe600;
}

/* KEPT: Essential ripple effect for submit button */
.btn-submit::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #ffe600;
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-submit:hover::before {
    left: 0;
}

.btn-submit:hover {
    color: #000;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-submit:disabled:hover {
    color: #ffe600;
}

.btn-submit:disabled::before {
    left: -100%;
}

.form-message {
    padding: 1rem 1.5rem;
    margin-top: 1rem;
    border-left: 4px solid;
    font-family: "TheGoodMonolith", monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.6;
}

.form-message.hidden {
    display: none;
}

.form-message.success {
    background: rgba(52, 168, 83, 0.1);
    border-color: #34a853;
    color: #34a853;
}

.form-message.error {
    background: rgba(234, 67, 53, 0.1);
    border-color: #ea4335;
    color: #ea4335;
}

.form-message.warning {
    background: rgba(251, 188, 5, 0.1);
    border-color: #fbbc05;
    color: #fbbc05;
}

.form-message.info {
    background: rgba(66, 133, 244, 0.1);
    border-color: #4285f4;
    color: #4285f4;
}

/* Custom Scrollbar for Modal */
.booking-modal::-webkit-scrollbar {
    width: 6px;
}

.booking-modal::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.booking-modal::-webkit-scrollbar-thumb {
    background: #ffe600;
    border-radius: 3px;
}

.booking-modal::-webkit-scrollbar-thumb:hover {
    background: #fff;
}

/* Responsive Design */
@media (max-width: 768px) {
    .top-nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0;
    }
    
    .nav-btn {
        flex: 1;
        min-width: 100px;
        padding: 0.8rem 1rem;
        font-size: 10px;
    }
    
    .nav-btn span {
        font-size: 11px;
    }
    
    .nav-btn small {
        font-size: 8px;
    }
    
    .booking-modal-overlay {
        padding: 1rem;
    }
    
    .booking-modal {
        max-width: 100%;
    }
    
    .booking-header {
        padding: 1.5rem 1.5rem 1rem 1.5rem;
    }
    
    .booking-header h2 {
        font-size: 1.5rem;
    }
    
    .booking-content {
        padding: 1.5rem;
    }
    
    .course-details {
        padding: 1rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn-cancel,
    .btn-submit {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-btn {
        padding: 0.7rem 0.8rem;
        font-size: 9px;
        min-width: 90px;
    }
    
    .nav-btn span {
        font-size: 10px;
    }
    
    .nav-btn small {
        font-size: 7px;
    }
    
    .booking-header {
        padding: 1rem 1rem 0.5rem 1rem;
    }
    
    .booking-header h2 {
        font-size: 1.2rem;
    }
    
    .booking-content {
        padding: 1rem;
    }
    
    .course-details {
        padding: 0.8rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.8rem 1rem;
        font-size: 13px;
    }
    
    .btn-cancel,
    .btn-submit {
        padding: 0.8rem 1.5rem;
        font-size: 11px;
    }
}

/* Animation for form validation errors */
.form-group.error input,
.form-group.error textarea {
    border-color: #ea4335;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Loading state for submit button */
.btn-submit.loading {
    position: relative;
    color: transparent;
}

.btn-submit.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid #ffe600;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}