/* =====================================================================
   YouTube Meta Generator Pro – Frontend CSS
   Dark / Light mode | Bootstrap 5 + custom design tokens
   ===================================================================== */

/* ── CSS Variables ───────────────────────────────────────────────────── */
:root {
    --ytmgp-primary:       #4f46e5;
    --ytmgp-primary-dark:  #3730a3;
    --ytmgp-accent:        #e11d48;
    --ytmgp-success:       #10b981;
    --ytmgp-warning:       #f59e0b;
    --ytmgp-bg:            #f8fafc;
    --ytmgp-surface:       #ffffff;
    --ytmgp-border:        #e2e8f0;
    --ytmgp-text:          #1e293b;
    --ytmgp-text-muted:    #64748b;
    --ytmgp-radius:        14px;
    --ytmgp-shadow:        0 2px 16px rgba(0,0,0,.08);
    --ytmgp-shadow-lg:     0 8px 40px rgba(0,0,0,.14);
    --ytmgp-transition:    all .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
    --ytmgp-bg:            #0f172a;
    --ytmgp-surface:       #1e293b;
    --ytmgp-border:        #334155;
    --ytmgp-text:          #f1f5f9;
    --ytmgp-text-muted:    #94a3b8;
    --ytmgp-shadow:        0 2px 16px rgba(0,0,0,.4);
    --ytmgp-shadow-lg:     0 8px 40px rgba(0,0,0,.6);
}

/* ── Wrapper ─────────────────────────────────────────────────────────── */
.ytmgp-wrapper {
    background: var(--ytmgp-bg);
    color: var(--ytmgp-text);
    padding: 24px 20px;
    max-width: 1200px;
    margin: 0 auto;
    font-family: 'Inter', system-ui, sans-serif;
    transition: var(--ytmgp-transition);
}

/* ── Cards ───────────────────────────────────────────────────────────── */
.ytmgp-card {
    background: var(--ytmgp-surface);
    border: 1px solid var(--ytmgp-border);
    border-radius: var(--ytmgp-radius);
    padding: 24px;
    box-shadow: var(--ytmgp-shadow);
    transition: var(--ytmgp-transition);
}
.ytmgp-card:hover {
    box-shadow: var(--ytmgp-shadow-lg);
    transform: translateY(-2px);
}

/* ── Top Bar ─────────────────────────────────────────────────────────── */
.ytmgp-topbar {
    padding: 12px 20px;
    background: var(--ytmgp-surface);
    border-radius: var(--ytmgp-radius);
    border: 1px solid var(--ytmgp-border);
    box-shadow: var(--ytmgp-shadow);
    flex-wrap: wrap;
    gap: 10px;
}
.ytmgp-brand { font-size: 1.1rem; font-weight: 700; color: var(--ytmgp-text); }
.ytmgp-badge-balance {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    padding: 5px 14px;
    border-radius: 50px;
    font-weight: 600;
    font-size: .875rem;
}
.ytmgp-theme-toggle {
    background: transparent;
    border: 1px solid var(--ytmgp-border);
    color: var(--ytmgp-text);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* ── Main Tabs ───────────────────────────────────────────────────────── */
.ytmgp-main-tabs .nav-link {
    color: var(--ytmgp-text-muted);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 10px 18px;
    font-weight: 500;
    transition: var(--ytmgp-transition);
    background: transparent;
}
.ytmgp-main-tabs .nav-link:hover { color: var(--ytmgp-primary); }
.ytmgp-main-tabs .nav-link.active {
    color: var(--ytmgp-primary);
    border-bottom-color: var(--ytmgp-primary);
}

/* ── Gradient Buttons ────────────────────────────────────────────────── */
.ytmgp-btn-gradient {
    background: linear-gradient(135deg, var(--ytmgp-primary), #7c3aed);
    border: none;
    color: #fff;
    font-weight: 600;
    letter-spacing: .02em;
    transition: var(--ytmgp-transition);
}
.ytmgp-btn-gradient:hover {
    background: linear-gradient(135deg, var(--ytmgp-primary-dark), #6d28d9);
    color: #fff;
    transform: translateY(-1px);
}
.ytmgp-btn-gradient-green {
    background: linear-gradient(135deg, #10b981, #059669);
    border: none;
    color: #fff;
    font-weight: 600;
    transition: var(--ytmgp-transition);
}
.ytmgp-btn-generate {
    background: linear-gradient(135deg, #e11d48, #be123c);
    border: none;
    color: #fff;
    font-weight: 700;
    padding: 12px;
    font-size: 1rem;
    letter-spacing: .04em;
    transition: var(--ytmgp-transition);
}
.ytmgp-btn-generate:hover {
    background: linear-gradient(135deg, #be123c, #9f1239);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(225,29,72,.4);
}

/* ── Textarea ────────────────────────────────────────────────────────── */
.ytmgp-textarea {
    background: var(--ytmgp-bg);
    color: var(--ytmgp-text);
    border: 2px solid var(--ytmgp-border);
    border-radius: 10px;
    font-size: .95rem;
    resize: vertical;
    transition: var(--ytmgp-transition);
}
.ytmgp-textarea:focus {
    border-color: var(--ytmgp-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.15);
    background: var(--ytmgp-surface);
    color: var(--ytmgp-text);
}

/* ── Result blocks ───────────────────────────────────────────────────── */
.ytmgp-result-block {
    background: var(--ytmgp-bg);
    border-left: 4px solid var(--ytmgp-primary);
    border-radius: 0 10px 10px 0;
    padding: 14px 16px;
    transition: var(--ytmgp-transition);
}
.ytmgp-result-label {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--ytmgp-text-muted);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.ytmgp-result-text {
    color: var(--ytmgp-text);
    white-space: pre-wrap;
    line-height: 1.7;
}
.btn-xs { padding: 2px 8px; font-size: .75rem; }
.btn-copy { cursor: pointer; border-radius: 6px; }

/* ── Typing animation ────────────────────────────────────────────────── */
@keyframes cursor-blink {
    0%,100% { border-right-color: var(--ytmgp-primary); }
    50%      { border-right-color: transparent; }
}
.ytmgp-typing.typing-active {
    border-right: 2px solid var(--ytmgp-primary);
    animation: cursor-blink .6s infinite;
}

/* ── Result placeholder ──────────────────────────────────────────────── */
.ytmgp-result-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

/* ── History ─────────────────────────────────────────────────────────── */
.ytmgp-history-item {
    background: var(--ytmgp-surface);
    border: 1px solid var(--ytmgp-border);
    border-radius: var(--ytmgp-radius);
    padding: 16px 20px;
    margin-bottom: 12px;
    transition: var(--ytmgp-transition);
    cursor: pointer;
}
.ytmgp-history-item:hover { border-color: var(--ytmgp-primary); box-shadow: var(--ytmgp-shadow); }
.ytmgp-history-item.is-fav { border-left: 4px solid var(--ytmgp-warning); }

/* ── Wallet cards ────────────────────────────────────────────────────── */
.ytmgp-wallet-balance-card {
    background: linear-gradient(135deg, var(--ytmgp-primary), #7c3aed);
    color: #fff;
    border: none;
}
.ytmgp-wallet-balance-card .text-muted { color: rgba(255,255,255,.75) !important; }
.ytmgp-wallet-icon { font-size: 2.5rem; margin-bottom: 8px; }
.ytmgp-wallet-amount { font-size: 3rem; font-weight: 800; line-height: 1; }
.ytmgp-mini-stat { text-align: center; padding: 12px; background: var(--ytmgp-bg); border-radius: 10px; }
.ytmgp-mini-val { font-size: 1.4rem; font-weight: 700; }
.ytmgp-mini-lbl { font-size: .75rem; color: var(--ytmgp-text-muted); }

/* ── Plan cards ──────────────────────────────────────────────────────── */
.ytmgp-plan-card {
    background: var(--ytmgp-surface);
    border: 2px solid var(--ytmgp-border);
    border-radius: var(--ytmgp-radius);
    padding: 24px 20px;
    text-align: center;
    position: relative;
    transition: var(--ytmgp-transition);
    color: var(--ytmgp-text);
}
.ytmgp-plan-card:hover,
.ytmgp-plan-card.selected {
    border-color: var(--ytmgp-primary);
    box-shadow: 0 0 0 4px rgba(79,70,229,.15);
    transform: translateY(-3px);
}
.ytmgp-plan-popular {
    border-color: var(--ytmgp-primary);
    background: linear-gradient(135deg, rgba(79,70,229,.08), rgba(124,58,237,.08));
}
.ytmgp-plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--ytmgp-primary), #7c3aed);
    color: #fff;
    font-size: .7rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 50px;
    text-transform: uppercase;
}
.ytmgp-plan-price { font-size: 2rem; font-weight: 800; color: var(--ytmgp-primary); }
.ytmgp-plan-credits { font-size: .9rem; color: var(--ytmgp-text-muted); margin-top: 4px; }
.cursor-pointer { cursor: pointer; }

/* ── Tips ────────────────────────────────────────────────────────────── */
.ytmgp-tips { border-top: 1px dashed var(--ytmgp-border); padding-top: 14px; }

/* ── Auth Modal ──────────────────────────────────────────────────────── */
.ytmgp-auth-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: none;
    opacity: 0;
    transition: opacity .3s;
}
.ytmgp-auth-backdrop.show { display: block; opacity: 1; }
.ytmgp-auth-modal {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    pointer-events: none;
    opacity: 0;
    transform: scale(.96);
    transition: opacity .3s, transform .3s;
}
.ytmgp-auth-modal.show { pointer-events: all; opacity: 1; transform: scale(1); }
.ytmgp-auth-box {
    background: var(--ytmgp-surface);
    border-radius: 20px;
    padding: 36px 32px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--ytmgp-shadow-lg);
    position: relative;
}
.ytmgp-auth-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--ytmgp-bg);
    border: 1px solid var(--ytmgp-border);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ytmgp-text);
    transition: var(--ytmgp-transition);
}
.ytmgp-auth-close:hover { background: var(--ytmgp-accent); color: #fff; border-color: var(--ytmgp-accent); }
.ytmgp-auth-brand h4 { color: var(--ytmgp-text); }

/* Bootstrap overrides for dark mode */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] .input-group-text {
    background: var(--ytmgp-bg);
    color: var(--ytmgp-text);
    border-color: var(--ytmgp-border);
}
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background: #1e293b;
    color: var(--ytmgp-text);
    border-color: var(--ytmgp-primary);
}
[data-theme="dark"] .dropdown-menu {
    background: var(--ytmgp-surface);
    border-color: var(--ytmgp-border);
}
[data-theme="dark"] .dropdown-item { color: var(--ytmgp-text); }
[data-theme="dark"] .dropdown-item:hover { background: var(--ytmgp-bg); }
[data-theme="dark"] .modal-content {
    background: var(--ytmgp-surface);
    color: var(--ytmgp-text);
    border-color: var(--ytmgp-border);
}
[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer { border-color: var(--ytmgp-border); }
[data-theme="dark"] .table {
    color: var(--ytmgp-text);
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(255,255,255,.04);
    --bs-table-hover-bg: rgba(255,255,255,.06);
}
[data-theme="dark"] .nav-tabs { border-color: var(--ytmgp-border); }
[data-theme="dark"] .nav-tabs .nav-link { color: var(--ytmgp-text-muted); }
[data-theme="dark"] .alert { background: var(--ytmgp-bg); border-color: var(--ytmgp-border); }
[data-theme="dark"] .nav-pills .nav-link { color: var(--ytmgp-text-muted); }
[data-theme="dark"] .btn-close { filter: invert(1); }
[data-theme="dark"] .toast { background: var(--ytmgp-surface); color: var(--ytmgp-text); }

/* ── Loading shimmer ─────────────────────────────────────────────────── */
@keyframes shimmer { 0% { background-position: -600px 0; } 100% { background-position: 600px 0; } }
.ytmgp-shimmer {
    background: linear-gradient(90deg, var(--ytmgp-bg) 25%, var(--ytmgp-border) 50%, var(--ytmgp-bg) 75%);
    background-size: 1200px 100%;
    animation: shimmer 1.4s infinite;
    border-radius: 6px;
    min-height: 16px;
}

/* ── Ad banner ───────────────────────────────────────────────────────── */
.ytmgp-ad-banner {
    border: 1px dashed var(--ytmgp-border);
    border-radius: var(--ytmgp-radius);
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 575.98px) {
    .ytmgp-wrapper { padding: 14px 12px; }
    .ytmgp-auth-box { padding: 24px 18px; }
    .ytmgp-wallet-amount { font-size: 2.2rem; }
    .ytmgp-main-tabs .nav-link { padding: 8px 10px; font-size: .85rem; }
}