/* ─── Rail724 Premium Auth — modal + صفحات ورود/تأیید ─── */

.auth-premium-page {
    min-height: calc(100vh - var(--site-header-offset, 72px) - 40px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px 80px;
    position: relative;
    overflow: hidden;
}

.auth-premium-page::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 15%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(212, 160, 23, 0.18), transparent 70%);
    pointer-events: none;
    filter: blur(2px);
}

.auth-premium-page::after {
    content: '';
    position: absolute;
    bottom: 5%;
    left: 10%;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12), transparent 70%);
    pointer-events: none;
}

.auth-premium-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    padding: 36px 32px 32px;
    border-radius: 28px;
    background:
        linear-gradient(155deg, rgba(18, 26, 48, 0.95), rgba(8, 12, 24, 0.98));
    border: 1px solid rgba(212, 160, 23, 0.32);
    box-shadow:
        0 32px 90px rgba(0, 0, 0, 0.55),
        0 0 0 1px rgba(255, 255, 255, 0.04) inset,
        0 0 60px rgba(212, 160, 23, 0.08);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    overflow: hidden;
}

.auth-premium-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 35%);
    pointer-events: none;
}

.auth-premium-mesh {
    position: absolute;
    inset: 0;
    opacity: 0.35;
    background-image:
        linear-gradient(rgba(212, 160, 23, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 160, 23, 0.06) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 75%);
}

.auth-premium-brand {
    text-align: center;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.auth-premium-logo-ring {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 88px;
    height: 88px;
    border-radius: 24px;
    margin-bottom: 18px;
    background: linear-gradient(145deg, rgba(212, 160, 23, 0.22), rgba(59, 130, 246, 0.12));
    border: 1px solid rgba(212, 160, 23, 0.45);
    box-shadow: 0 12px 40px rgba(212, 160, 23, 0.25);
    position: relative;
}

.auth-premium-logo-ring::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 28px;
    border: 1px solid rgba(212, 160, 23, 0.2);
    animation: authRingPulse 3s ease-in-out infinite;
}

@keyframes authRingPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.03); }
}

.auth-premium-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
    border-radius: 14px;
}

.auth-premium-title {
    font-size: 26px;
    font-weight: 900;
    margin: 0 0 8px;
    line-height: 1.3;
}

.auth-premium-title .brand-fa {
    font-family: var(--font-brand, 'Lalezar', 'Vazirmatn', Tahoma, sans-serif);
    font-weight: 400;
    font-size: 30px;
    background: linear-gradient(135deg, #fde68a, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.auth-premium-title .brand-num {
    font-family: var(--font-sans, 'Vazirmatn', Tahoma, sans-serif);
    font-weight: 800;
    color: #7dd3fc;
    direction: ltr;
    unicode-bidi: isolate;
    letter-spacing: 0.06em;
}

.auth-premium-sub {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.auth-premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: var(--gold);
    background: rgba(212, 160, 23, 0.1);
    border: 1px solid rgba(212, 160, 23, 0.28);
}

.auth-premium-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.auth-premium-step {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
}

.auth-premium-step.is-active {
    color: #0a0f1a;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    border-color: transparent;
    box-shadow: 0 4px 18px rgba(212, 160, 23, 0.35);
}

.auth-premium-step.is-done {
    color: var(--gold);
    border-color: rgba(212, 160, 23, 0.35);
    background: rgba(212, 160, 23, 0.08);
}

.auth-premium-step-divider {
    width: 24px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.auth-premium-field {
    position: relative;
    z-index: 1;
    margin-bottom: 22px;
}

.auth-premium-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.auth-premium-phone-box {
    position: relative;
    display: flex;
    align-items: stretch;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(212, 160, 23, 0.38);
    background: rgba(4, 8, 18, 0.65);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.25);
    transition: border-color 0.25s, box-shadow 0.25s;
}

.auth-premium-phone-box:focus-within {
    border-color: var(--gold);
    box-shadow:
        inset 0 2px 8px rgba(0, 0, 0, 0.25),
        0 0 0 4px rgba(212, 160, 23, 0.15);
}

.auth-premium-prefix {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 14px;
    font-size: 14px;
    font-weight: 800;
    color: var(--gold);
    background: rgba(212, 160, 23, 0.1);
    border-left: 1px solid rgba(212, 160, 23, 0.2);
    direction: ltr;
    flex-shrink: 0;
}

.auth-premium-phone-input,
.auth-glass-panel .auth-premium-phone-input {
    flex: 1;
    min-width: 0;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 18px 16px !important;
    font-size: 22px !important;
    font-weight: 800 !important;
    letter-spacing: 3px !important;
    text-align: center;
    direction: ltr;
    font-variant-numeric: tabular-nums;
    color: #fff;
}

.auth-premium-phone-input:focus,
.auth-glass-panel .auth-premium-phone-input:focus {
    outline: none;
    box-shadow: none !important;
}

.auth-premium-submit,
.auth-glass-panel .auth-premium-submit {
    width: 100%;
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 56px;
    padding: 16px 24px !important;
    border-radius: 16px !important;
    font-size: 16px !important;
    font-weight: 800 !important;
    border: none;
    cursor: pointer;
    background: linear-gradient(135deg, #f0c94a 0%, #d4a017 45%, #c9920f 100%) !important;
    color: #0a0f1a !important;
    box-shadow:
        0 8px 28px rgba(212, 160, 23, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.35);
    transition: transform 0.2s, box-shadow 0.2s;
}

.auth-premium-submit:hover:not(:disabled),
.auth-glass-panel .auth-premium-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow:
        0 12px 36px rgba(212, 160, 23, 0.55),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.auth-premium-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.auth-premium-submit-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.14);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.auth-premium-otp-intro {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin: 0 0 22px;
    position: relative;
    z-index: 1;
}

.auth-premium-phone-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 10px;
    background: rgba(212, 160, 23, 0.12);
    border: 1px solid rgba(212, 160, 23, 0.3);
    color: var(--gold);
    font-weight: 800;
    direction: ltr;
    letter-spacing: 1px;
    font-variant-numeric: tabular-nums;
}

.auth-premium-otp-row,
.auth-glass-panel .auth-premium-otp-row {
    display: flex;
    gap: 10px;
    justify-content: center;
    direction: ltr;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.auth-premium-otp-digit,
.auth-glass-panel .auth-premium-otp-digit {
    width: 52px;
    height: 60px;
    text-align: center;
    font-size: 26px;
    font-weight: 800;
    border-radius: 16px;
    border: 1px solid rgba(212, 160, 23, 0.35);
    background: rgba(4, 8, 18, 0.75);
    color: #fff;
    font-variant-numeric: tabular-nums;
    transition: all 0.22s ease;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.2);
}

.auth-premium-otp-digit:focus,
.auth-glass-panel .auth-premium-otp-digit:focus {
    outline: none;
    border-color: var(--gold);
    background: rgba(212, 160, 23, 0.08);
    box-shadow:
        0 0 0 4px rgba(212, 160, 23, 0.18),
        0 8px 24px rgba(212, 160, 23, 0.2);
    transform: translateY(-2px);
}

.auth-premium-otp-digit.filled {
    border-color: rgba(212, 160, 23, 0.6);
    background: rgba(212, 160, 23, 0.1);
}

.auth-premium-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px;
    position: relative;
    z-index: 1;
}

.auth-premium-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 14px;
    border-radius: 14px;
    font-size: 13px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid rgba(212, 160, 23, 0.35);
    background: rgba(212, 160, 23, 0.08);
    color: var(--gold);
    transition: all 0.2s ease;
}

.auth-premium-action-btn:hover:not(:disabled) {
    background: rgba(212, 160, 23, 0.16);
    border-color: var(--gold);
    transform: translateY(-1px);
}

.auth-premium-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-premium-action-btn--blue {
    border-color: rgba(96, 165, 250, 0.35);
    background: rgba(96, 165, 250, 0.08);
    color: #93c5fd;
}

.auth-premium-action-btn--blue:hover:not(:disabled) {
    background: rgba(96, 165, 250, 0.16);
    border-color: #93c5fd;
}

.auth-premium-footnote {
    text-align: center;
    margin-top: 22px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.auth-premium-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: color 0.2s;
}

.auth-premium-back:hover {
    color: var(--gold);
}

.auth-premium-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 11px;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

.auth-premium-trust span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.auth-premium-trust i {
    color: var(--gold);
    opacity: 0.8;
}

.auth-premium-alert {
    margin-bottom: 18px;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.auth-premium-alert-success {
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.35);
    color: #4ade80;
}

.auth-premium-alert-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #f87171;
}

.auth-premium-alert-warning {
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: #fbbf24;
}

/* ─── Glass modal overrides ─── */
.auth-glass-panel.auth-premium-modal {
    max-width: 460px;
    padding: 32px 28px 28px;
    border-radius: 28px;
}

.auth-glass-panel.auth-premium-modal .auth-glass-header {
    margin-bottom: 24px;
}

.auth-glass-panel.auth-premium-modal .auth-glass-close {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    top: 16px;
    left: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
}

.auth-glass-panel.auth-premium-modal .auth-glass-close:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.35);
    color: #fca5a5;
}

.auth-glass-panel.auth-premium-modal .auth-glass-glow {
    width: 300px;
    height: 300px;
    top: -50%;
    right: -30%;
    background: radial-gradient(circle, rgba(212, 160, 23, 0.28), transparent 68%);
}

.auth-glass-error.auth-premium-error {
    border-radius: 14px;
    margin-top: 16px;
}

@media (max-width: 480px) {
    .auth-premium-card {
        padding: 28px 20px 24px;
        border-radius: 22px;
    }

    .auth-premium-otp-digit,
    .auth-glass-panel .auth-premium-otp-digit {
        width: 44px;
        height: 54px;
        font-size: 22px;
        border-radius: 14px;
    }

    .auth-premium-otp-row,
    .auth-glass-panel .auth-premium-otp-row {
        gap: 7px;
    }

    .auth-premium-actions {
        grid-template-columns: 1fr;
    }

    .auth-premium-steps {
        flex-wrap: wrap;
    }
}