/* ══════════════════════════════════════
   theme.css — RevivalConcert
   Dark mode (default) & Light mode
   ══════════════════════════════════════ */

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a { text-decoration: none; }

/* ── Dark (default) ── */
:root {
    --overlay-bg:        rgba(0, 0, 0, 0.65);
    --header-border:     rgba(255, 255, 255, 0.1);
    --logo-color:        #ffffff;
    --nav-color:         rgba(255, 255, 255, 0.55);
    --nav-hover:         #ffffff;
    --text-primary:      #ffffff;
    --text-muted:        rgba(255, 255, 255, 0.55);
    --text-faint:        rgba(255, 255, 255, 0.35);
    --text-faintest:     rgba(255, 255, 255, 0.25);
    --border:            rgba(255, 255, 255, 0.08);
    --border-btn:        rgba(255, 255, 255, 0.4);
    --card-bg:           rgba(10, 10, 10, 0.75);
    --card-hover:        rgba(20, 20, 20, 0.85);
    --card-image-bg:     rgba(255, 255, 255, 0.04);
    --card-image-border: rgba(255, 255, 255, 0.08);
    --card-detail-border:rgba(255, 255, 255, 0.05);
    --detail-color:      rgba(255, 255, 255, 0.45);
    --empty-bg:          rgba(10, 10, 10, 0.5);
    --empty-border:      rgba(255, 255, 255, 0.07);
    --footer-bg:         rgba(0, 0, 0, 0.3);
    --section-line:      rgba(255, 255, 255, 0.1);
    --divider:           rgba(255, 255, 255, 0.35);
    --btn-bg:            transparent;
    --btn-color:         #ffffff;
    --btn-border:        rgba(255, 255, 255, 0.4);
    --btn-solid-bg:      #ffffff;
    --btn-solid-color:   #111111;
    --btn-hover-bg:      #ffffff;
    --btn-hover-color:   #111111;
    --toggle-icon:       '☀';
    --toggle-label:      ' Light';
    --page-title-color:  #ffffff;
    --page-line-bg:      rgba(255, 255, 255, 0.4);
    --white-card-bg:     rgba(255, 255, 255, 0.96);
    --white-card-color:  #0d0d0d;
    --white-card-label:  #888888;
    --white-card-input:  #111111;
    --white-card-border: #dddddd;
    --white-card-focus:  #111111;
    --white-card-ph:     #bbbbbb;
    --white-card-note:   #bbbbbb;
    --white-card-sub:    #999999;
    --white-card-divider:#cccccc;
    --white-btn-bg:      #0d0d0d;
    --white-btn-color:   #ffffff;
    --white-btn-hover:   #2a2a2a;
    --white-link-color:  #0d0d0d;
}

/* ── Light mode ── */
[data-theme="light"] {
    --overlay-bg:        rgba(240, 235, 228, 0.88);
    --header-border:     rgba(0, 0, 0, 0.08);
    --logo-color:        #1a1a1a;
    --nav-color:         rgba(0, 0, 0, 0.5);
    --nav-hover:         #111111;
    --text-primary:      #111111;
    --text-muted:        rgba(0, 0, 0, 0.55);
    --text-faint:        rgba(0, 0, 0, 0.4);
    --text-faintest:     rgba(0, 0, 0, 0.3);
    --border:            rgba(0, 0, 0, 0.1);
    --border-btn:        rgba(0, 0, 0, 0.3);
    --card-bg:           rgba(255, 252, 248, 0.88);
    --card-hover:        rgba(255, 255, 255, 0.97);
    --card-image-bg:     rgba(0, 0, 0, 0.04);
    --card-image-border: rgba(0, 0, 0, 0.08);
    --card-detail-border:rgba(0, 0, 0, 0.07);
    --detail-color:      rgba(0, 0, 0, 0.5);
    --empty-bg:          rgba(255, 252, 248, 0.7);
    --empty-border:      rgba(0, 0, 0, 0.07);
    --footer-bg:         rgba(230, 225, 218, 0.6);
    --section-line:      rgba(0, 0, 0, 0.1);
    --divider:           rgba(0, 0, 0, 0.2);
    --btn-bg:            transparent;
    --btn-color:         #111111;
    --btn-border:        rgba(0, 0, 0, 0.35);
    --btn-solid-bg:      #111111;
    --btn-solid-color:   #ffffff;
    --btn-hover-bg:      #111111;
    --btn-hover-color:   #ffffff;
    --toggle-icon:       '☾';
    --toggle-label:      ' Dark';
    --page-title-color:  #111111;
    --page-line-bg:      rgba(0, 0, 0, 0.2);
    --white-card-bg:     rgba(255, 255, 255, 0.97);
    --white-card-color:  #0d0d0d;
    --white-card-label:  #666666;
    --white-card-input:  #111111;
    --white-card-border: #cccccc;
    --white-card-focus:  #111111;
    --white-card-ph:     #aaaaaa;
    --white-card-note:   #aaaaaa;
    --white-card-sub:    #888888;
    --white-card-divider:#bbbbbb;
    --white-btn-bg:      #0d0d0d;
    --white-btn-color:   #ffffff;
    --white-btn-hover:   #2a2a2a;
    --white-link-color:  #0d0d0d;
}

/* ── Base ── */
html, body {
    font-family: 'Jost', sans-serif;
    color: var(--text-primary);
    min-height: 100vh;
    transition: color 0.3s;
}

body {
    background-image: url('../images/BGALL.jfif');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    z-index: 0;
    transition: background 0.3s;
}

header, main, footer { position: relative; z-index: 1; }

/* ══════════════════════════════════════
   HEADER
   ══════════════════════════════════════ */
header {
    background: transparent;
    padding: 0 2rem;
    border-bottom: 0.5px solid var(--header-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: border-color 0.3s;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 1.5rem;
}

.logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--logo-color);
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: color 0.3s;
    flex-shrink: 0;
}

header nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

header nav ul li a {
    color: var(--nav-color);
    font-size: 0.72rem;
    font-weight: 300;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    transition: color 0.2s;
}

header nav ul li a:hover { color: var(--nav-hover); }

/* ── Theme toggle button ── */
.theme-toggle {
    background: transparent;
    border: 0.5px solid var(--border-btn);
    color: var(--nav-color);
    font-family: 'Jost', sans-serif;
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 0.35rem 0.8rem;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
    border-radius: 1px;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.theme-toggle:hover {
    color: var(--nav-hover);
    border-color: var(--nav-hover);
}

.theme-toggle .toggle-icon { font-size: 0.8rem; }

/* ══════════════════════════════════════
   LAYOUT
   ══════════════════════════════════════ */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem 5rem;
}

/* ══════════════════════════════════════
   HERO
   ══════════════════════════════════════ */
.hero {
    text-align: center;
    padding: 5rem 0 4rem;
}

.hero-eyebrow {
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 4rem;
    font-weight: 300;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero h1 em {
    font-style: italic;
    color: var(--text-muted);
}

.hero-divider {
    width: 40px;
    height: 0.5px;
    background: var(--divider);
    margin: 1.5rem auto;
}

.hero-sub {
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    max-width: 480px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ══════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════ */
.btn {
    display: inline-block;
    background: var(--btn-bg);
    color: var(--btn-color);
    border: 0.5px solid var(--btn-border);
    border-radius: 1px;
    font-family: 'Jost', sans-serif;
    font-weight: 400;
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 0.75rem 1.8rem;
    cursor: pointer;
    transition: background 0.25s, border-color 0.25s, color 0.25s, letter-spacing 0.25s;
    text-align: center;
}

.btn:hover {
    background: var(--btn-hover-bg);
    color: var(--btn-hover-color);
    border-color: var(--btn-hover-bg);
    letter-spacing: 4px;
}

.btn-solid {
    background: var(--btn-solid-bg);
    color: var(--btn-solid-color);
    border-color: var(--btn-solid-bg);
}

.btn-solid:hover {
    background: transparent;
    color: var(--btn-color);
    border-color: var(--btn-border);
}

/* ══════════════════════════════════════
   SECTION HEADER
   ══════════════════════════════════════ */
.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.section-label {
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-faint);
    white-space: nowrap;
}

.section-line {
    flex: 1;
    height: 0.5px;
    background: var(--section-line);
}

/* ══════════════════════════════════════
   CONCERT GRID
   ══════════════════════════════════════ */
.concert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 0.5px solid var(--border);
    margin-bottom: 3rem;
}

.concert-card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 2rem 1.5rem;
    transition: background 0.2s;
}

.concert-card:hover { background: var(--card-hover); }

.concert-image {
    width: 100%;
    height: 160px;
    background: var(--card-image-bg);
    border: 0.5px solid var(--card-image-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    overflow: hidden;
    font-size: 0.7rem;
    color: var(--text-faint);
    letter-spacing: 1px;
}

.concert-image img { width: 100%; height: 100%; object-fit: cover; }

.concert-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    letter-spacing: 0.5px;
}

.concert-artist {
    font-size: 0.68rem;
    color: var(--text-faint);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
}

.concert-details { margin-bottom: 1.2rem; }

.concert-detail-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0;
    border-bottom: 0.5px solid var(--card-detail-border);
    font-size: 0.78rem;
    color: var(--detail-color);
}

.concert-detail-row:last-child { border-bottom: none; }

.detail-icon { width: 14px; opacity: 0.4; flex-shrink: 0; }

.concert-price {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.concert-price span {
    font-family: 'Jost', sans-serif;
    font-size: 0.65rem;
    color: var(--text-faint);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-left: 0.3rem;
}

/* ══════════════════════════════════════
   EMPTY STATE
   ══════════════════════════════════════ */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    border: 0.5px solid var(--empty-border);
    background: var(--empty-bg);
    margin-bottom: 3rem;
}

.empty-state p {
    font-size: 0.8rem;
    color: var(--text-faint);
    letter-spacing: 1px;
    line-height: 1.8;
}

/* ══════════════════════════════════════
   FEATURES
   ══════════════════════════════════════ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 0.5px solid var(--border);
}

.feature-card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: background 0.2s;
}

.feature-card:hover { background: var(--card-hover); }

.feature-icon { width: 32px; height: 32px; margin: 0 auto 1.2rem; opacity: 0.5; }

.feature-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.feature-desc {
    font-size: 0.75rem;
    font-weight: 300;
    color: var(--text-faint);
    letter-spacing: 0.3px;
    line-height: 1.7;
}

/* ══════════════════════════════════════
   WELCOME BACK
   ══════════════════════════════════════ */
.welcome-back { padding: 3rem 0 2rem; }

.welcome-back .eyebrow {
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 0.5rem;
}

.welcome-back h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.2rem;
    font-weight: 300;
    color: var(--text-primary);
    letter-spacing: 1px;
}

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
footer {
    border-top: 0.5px solid var(--header-border);
    padding: 2rem;
    text-align: center;
    background: var(--footer-bg);
    backdrop-filter: blur(6px);
    transition: background 0.3s;
}

footer p {
    font-size: 0.68rem;
    font-weight: 300;
    color: var(--text-faintest);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ══════════════════════════════════════
   PAGE TITLE (login/register)
   ══════════════════════════════════════ */
.page-title {
    font-family: 'Cormorant Garamond', serif;
    color: var(--page-title-color);
    font-size: 2.8rem;
    font-weight: 300;
    letter-spacing: 10px;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
    text-align: center;
    transition: color 0.3s;
}

.page-title-line {
    width: 40px;
    height: 0.5px;
    background: var(--page-line-bg);
    margin: 0 auto 2.5rem;
    transition: background 0.3s;
}

/* ══════════════════════════════════════
   WHITE CARD (login/register form)
   ══════════════════════════════════════ */
.card {
    background: var(--white-card-bg) !important;
    border-radius: 2px !important;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35) !important;
    padding: 2.8rem 2.5rem !important;
    width: 100%;
    max-width: 420px;
    transition: background 0.3s, box-shadow 0.3s;
}

.card h2 {
    font-family: 'Cormorant Garamond', serif !important;
    color: var(--white-card-color) !important;
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-align: center;
    margin-bottom: 0.4rem;
}

.card-divider {
    width: 30px;
    height: 0.5px;
    background: var(--white-card-divider);
    margin: 0 auto 2rem;
}

.alert-danger {
    background: #fdf0f0;
    border-left: 2px solid #c0392b;
    color: #7b2d2d;
    padding: 0.75rem 1rem;
    font-size: 0.82rem;
    letter-spacing: 0.3px;
    margin-bottom: 1.5rem;
    border-radius: 1px;
}

.alert-success {
    background: #f0fdf4;
    border-left: 2px solid #27ae60;
    color: #1e6e40;
    padding: 0.75rem 1rem;
    font-size: 0.82rem;
    letter-spacing: 0.3px;
    margin-bottom: 1.5rem;
    border-radius: 1px;
}

.form-group { margin-bottom: 1.5rem; }

.form-group label {
    display: block;
    color: var(--white-card-label) !important;
    font-family: 'Jost', sans-serif;
    font-weight: 400;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    border: none !important;
    border-bottom: 1px solid var(--white-card-border) !important;
    border-radius: 0 !important;
    font-family: 'Jost', sans-serif !important;
    font-size: 0.9rem;
    color: var(--white-card-input) !important;
    background: transparent !important;
    padding: 0.55rem 0 !important;
    outline: none;
    transition: border-color 0.25s;
}

.form-control:focus {
    border-bottom-color: var(--white-card-focus) !important;
    background: transparent !important;
    box-shadow: none !important;
}

.form-control::placeholder {
    color: var(--white-card-ph);
    font-weight: 300;
}

.form-group small {
    display: block;
    margin-top: 0.35rem;
    color: var(--white-card-note) !important;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
}

.card .btn,
.card button.btn {
    width: 100%;
    background: var(--white-btn-bg) !important;
    color: var(--white-btn-color) !important;
    border: none !important;
    border-radius: 1px !important;
    font-family: 'Jost', sans-serif !important;
    font-weight: 400 !important;
    font-size: 0.72rem !important;
    letter-spacing: 3.5px !important;
    text-transform: uppercase !important;
    padding: 1rem !important;
    cursor: pointer;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
    display: block;
    text-align: center;
    transition: background 0.25s, letter-spacing 0.25s;
}

.card .btn:hover,
.card button.btn:hover {
    background: var(--white-btn-hover) !important;
    letter-spacing: 4.5px !important;
    color: var(--white-btn-color) !important;
    border-color: transparent !important;
}

.card-footer-text {
    text-align: center;
    font-size: 0.78rem;
    color: var(--white-card-sub) !important;
    letter-spacing: 0.3px;
}

.card-footer-text a {
    color: var(--white-link-color) !important;
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid var(--white-card-divider);
    padding-bottom: 1px;
    transition: border-color 0.2s;
}

.card-footer-text a:hover { border-color: var(--white-link-color); }

/* ══════════════════════════════════════
   LOGIN / REGISTER LAYOUT
   ══════════════════════════════════════ */
main.auth-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 64px);
    padding: 3rem 1.5rem;
    max-width: 100%;
}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 900px) {
    .concert-grid, .features-grid { grid-template-columns: repeat(2, 1fr); }
    .hero h1 { font-size: 2.8rem; }
}

@media (max-width: 600px) {
    .concert-grid, .features-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
    header nav ul { gap: 1.2rem; }
    .theme-toggle .toggle-label { display: none; }
}