/* 
  London Octave Design System
  Base CSS with Variables and Reset
*/

:root {
    /* Colors */
    --color-primary: #8B0000;
    /* Deep Velvet Red */
    --color-primary-light: #A52A2A;
    --color-dark: #0A0A0A;
    /* Midnight Black */
    --color-light: #FDFDFD;
    /* Pearl White */
    --color-gray: #333333;
    --color-gray-light: #E0E0E0;

    /* Typography */
    --font-serif: "Playfair Display", serif;
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Layout */
    --container-width: 1200px;
    --header-height: 70px;


    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-light);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.2;
}

p {
    margin-bottom: 1.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Base Layout Components */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section {
    padding: var(--spacing-lg) 0;
}

/* Premium Utility Classes */
.text-premium {
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.hero .text-premium {
    color: #FFFFFF;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background-color: var(--color-primary);
    color: var(--color-light);
    font-family: var(--font-serif);
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.btn:hover {
    background-color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    display: flex;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-normal);
    background-color: var(--color-dark);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header.scrolled {
    background-color: var(--color-dark);
    height: 70px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.menu-toggle {
    display: none;
}

.header-inner {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-sub {
    background-color: var(--color-dark) !important;
    height: 70px !important;
}

.logo h1 {
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    color: var(--color-light);
}

.nav-list {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-light);
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.nav-link:hover {
    opacity: 1;
    color: var(--color-primary-light);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    background-color: var(--color-dark);
    color: #FFFFFF;
    /* Bright white text */
    overflow: hidden;
    margin-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    top: 20px;
    /* Small margin from the top of the hero section (which is already below the menu) */
    left: 10%;
    /* Doubled side margins */
    right: 10%;
    bottom: 20px;
    background-image: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../assets/Musicians_of_London_Octave.webp');
    background-size: cover;
    background-position: center;
    z-index: 1;
    border-radius: 4px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    margin: var(--spacing-sm) 0;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-light);
    margin-left: var(--spacing-sm);
}

.btn-outline:hover {
    background-color: var(--color-light);
    color: var(--color-dark);
}

/* Typography Helpers */
.text-center {
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-lead {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.8;
}

.intro .section-title {
    font-size: 1.5rem;
}

/* Footer */
.footer {
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer h4,
.footer h5 {
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
}

.footer-nav ul li {
    margin-bottom: 0.5rem;
}

.footer-nav ul a {
    opacity: 0.7;
}

.footer-nav ul a:hover {
    opacity: 1;
    color: var(--color-primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    opacity: 0.6;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--color-dark);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-normal);
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 1001;
    }

    .menu-toggle .bar {
        width: 100%;
        height: 3px;
        background-color: var(--color-light);
        border-radius: 10px;
        transition: var(--transition-normal);
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(2) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .header-cta {
        display: none;
    }

    .nav.active .nav-list {
        display: flex;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .btn-outline {
        margin-left: 0;
    }
}

/* Page Spacing */
.pt-xl {
    padding-top: calc(var(--header-height) + var(--spacing-lg));
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* Players Grid */
.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.player-card {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition-normal);
}

.player-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.player-img {
    height: 400px;
    background-color: var(--color-gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.player-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.player-card:hover .player-img img {
    transform: scale(1.05);
}

.img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-gray-light) 0%, #ffffff 100%);
}

.player-info {
    padding: var(--spacing-md);
}

.player-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    letter-spacing: 0.05em;
    font-family: var(--font-serif);
}

.player-role {
    font-size: 0.8rem;
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 600;
    text-transform: uppercase;
}

.player-info p {
    font-size: 0.95rem;
    opacity: 0.8;
    margin-bottom: 0;
    max-height: 120px;
    overflow-y: auto;
    padding-right: 5px;
    /* Fade effect at the bottom */
    -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    transition: mask-image 0.3s ease, -webkit-mask-image 0.3s ease;
}

.player-info p.no-mask {
    -webkit-mask-image: none;
    mask-image: none;
}

/* Custom Scrollbar for Player Infos */
.player-info p::-webkit-scrollbar {
    width: 4px;
}

.player-info p::-webkit-scrollbar-track {
    background: transparent;
}

.player-info p::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-light);
    border-radius: 4px;
}

.player-info p::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-primary-light);
}

/* Concerts List */
.concert-content {
    max-width: 900px;
    margin: 0 auto;
}

.concert-item {
    display: grid;
    grid-template-columns: 180px 1fr 180px;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-gray-light);
    gap: var(--spacing-md);
}

.concert-date {
    font-family: var(--font-serif);
    color: var(--color-dark);
}

.concert-date .day {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
}

.concert-date .month-year {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
    font-weight: 600;
}

.concert-details h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

.concert-location {
    opacity: 0.7;
    font-style: italic;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.concert-program {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.concert-actions .btn-sm {
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
}

.concert-status {
    font-style: italic;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* CDs Typographical Layout */
.cds-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.cd-entry {
    background: white;
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition-normal);
}

.cd-entry:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.cd-header {
    margin-bottom: var(--spacing-sm);
}

.cd-header h3 {
    font-size: 1.8rem;
    margin-top: 0.25rem;
    color: var(--color-dark);
}

.cd-description {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.85;
    margin-bottom: var(--spacing-md);
}

.cd-footer {
    display: flex;
    justify-content: flex-start;
}


/* Contact Form */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-gray-light);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 1rem;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.captcha-panel {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border: 1px solid var(--color-gray-light);
    border-radius: 8px;
    background: rgba(253, 253, 253, 0.9);
}

.captcha-header {
    margin-bottom: var(--spacing-sm);
}

.captcha-title {
    font-size: 1.3rem;
    margin: 0.35rem 0 0.5rem;
}

.captcha-instructions {
    font-size: 0.95rem;
    margin-bottom: 0;
    opacity: 0.8;
}

.captcha-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    width: min(330px, 100%);
    margin: var(--spacing-sm) auto 0;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.captcha-tile {
    aspect-ratio: 1 / 1;
    border-radius: 10px;
    border: 1px solid var(--color-gray-light);
    background: #ffffff;
    color: var(--color-dark);
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 2.6vw, 1.5rem);
    font-weight: 700;
    cursor: grab;
    transition: var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
}

.captcha-tile.is-dragging {
    opacity: 0.6;
}

.captcha-tile:active {
    cursor: grabbing;
}

.captcha-ghost {
    position: fixed;
    z-index: 2000;
    pointer-events: none;
    opacity: 0.95;
    transform: translate(0, 0);
    transition: none;
}

.captcha-tile:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.captcha-tile:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.captcha-tile.is-selected {
    border-color: var(--color-primary);
    background: rgba(139, 0, 0, 0.08);
    transform: translateY(-2px);
}

.captcha-tile.is-correct {
    border-color: var(--color-primary);
    background: rgba(139, 0, 0, 0.12);
}

.captcha-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.captcha-actions .btn {
    padding: 0.55rem 1.5rem;
}

.captcha-actions .btn-outline {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: transparent;
}

.captcha-actions .btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-light);
}

.captcha-status {
    margin-top: var(--spacing-xs);
    text-align: center;
    font-weight: 600;
    color: var(--color-primary);
}

.captcha-status.is-warning {
    color: #b13030;
}

.captcha-status.is-success {
    color: #1f7a3f;
}

.btn.is-success {
    background-color: #1f7a3f;
}

.btn.is-success:hover {
    background-color: #14542b;
}

@media (max-width: 600px) {
    .captcha-panel {
        padding: var(--spacing-xs);
    }

    .captcha-grid {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .concert-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-sm);
        padding: var(--spacing-lg) 0;
    }

    .player-info p {
        max-height: none;
        overflow-y: visible;
        -webkit-mask-image: none;
        mask-image: none;
        padding-right: 0;
    }
}

/* --- Concerts Page Styles --- */
.concerts-section {
    margin-bottom: 4rem;
}

.concerts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.concert-card {
    background-color: var(--color-white);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    /* Ensure height adapts to content, no fixed height */
    height: auto;
}

.concert-card.upcoming {
    border: 1px solid var(--color-primary);
}

.concert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.concert-card.past {
    opacity: 0.9;
    background-color: #f9f9f9;
}

.concert-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--color-gray-light);
    padding-bottom: 0.5rem;
}

.concert-date {
    font-family: var(--font-heading);
    color: var(--color-accent);
    font-weight: 600;
    font-size: 1.1rem;
}

.concert-time {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.concert-details {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.concert-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.concert-venue {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.venue-name {
    display: block;
    font-weight: 600;
}

.venue-address {
    display: block;
    color: var(--color-gray);
    font-size: 0.85rem;
}

.concert-program {
    list-style-type: none;
    padding-left: 0;
    margin: 1rem 0;
    border-left: 2px solid var(--color-accent);
    padding-left: 1rem;
}

.concert-program li {
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.concert-performers {
    font-size: 0.9rem;
    font-style: italic;
    margin-top: 1rem;
}

.concert-actions {
    margin-top: auto;
    text-align: right;
}

.ticket-status {
    font-weight: 600;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .concerts-grid {
        grid-template-columns: 1fr;
    }
}