/* ═══════════════════════════════════════════
   Panel — Dark Theme Stylesheet
   ═══════════════════════════════════════════ */

/* ── Reset ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #18171d;
    --bg-secondary: #28272d;
    --bg-card: #28272d;
    --bg-card-border: #28272d;
    --bg-input: #3a383f;
    --bg-input-hover: #4c4b51;
    --bg-input-focus: #4c4b51;
    --border-default: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-focus: #007bff;
    --text-primary: #e8e8ea;
    --text-secondary: #b5b4b9;
    --text-muted: #8e8d93;
    --text-placeholder: #626168;
    --accent: #007bff;
    --accent-hover: #0069d9;
    --accent-soft: rgba(0, 123, 255, 0.12);
    --accent-glow: rgba(0, 123, 255, 0.15);
    --accent-orange: #fd7e14;
    --accent-orange-hover: #e96b02;
    --accent-orange-soft: rgba(253, 126, 20, 0.1);
    --accent-orange-glow: rgba(253, 126, 20, 0.15);
    --danger: #c02f12;
    --danger-bg: rgba(192, 47, 18, 0.1);
    --danger-border: rgba(192, 47, 18, 0.25);
    --info: #428fdc;
    --info-bg: rgba(66, 143, 220, 0.1);
    --info-border: rgba(66, 143, 220, 0.25);
    --warning: #995715;
    --warning-bg: rgba(153, 87, 21, 0.1);
    --warning-border: rgba(153, 87, 21, 0.25);
    --success: #2f7549;
    --success-bg: rgba(47, 117, 73, 0.1);
    --success-border: rgba(47, 117, 73, 0.25);
    --radius: 8px;
    --radius-sm: 6px;
    --radius-xs: 4px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.2s var(--ease);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scrollbar-gutter: stable;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ═══ LOGIN PAGE ═══ */

.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1.5rem;
    position: relative;
    background: var(--bg-primary);
}

/* Grid background */
.bg-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 60L60 0' stroke='%235b5bf7' stroke-width='0.5' fill='none' opacity='0.12'/%3E%3C/svg%3E"),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M60 60L0 0' stroke='%235b5bf7' stroke-width='0.5' fill='none' opacity='0.06'/%3E%3C/svg%3E");
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
}

.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    background: #28272d5e;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: none;
    animation: cardAppear 0.6s var(--ease) both;
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ── Header ── */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.login-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ── Alerts ── */
.alert {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    line-height: 1.5;
    animation: alertSlide 0.3s var(--ease) both;
}

@keyframes alertSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.alert-danger { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger); }
.alert-info { background: var(--info-bg); border: 1px solid var(--info-border); color: var(--info); }
.alert-warning { background: var(--warning-bg); border: 1px solid var(--warning-border); color: var(--warning); }
.alert-success { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success); }

/* ── Honeypot (invisible) ── */
.hp-field {
    position: absolute;
    left: -9999px;
    top: -9999px;
    width: 0;
    height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    tabindex: -1;
}

/* ── Form ── */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.45rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition);
    z-index: 1;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--transition);
}

.form-control::placeholder {
    color: var(--text-placeholder);
}

.form-control:hover {
    border-color: rgba(255, 255, 255, 0.08);
    background: var(--bg-input-hover);
}

.form-control:focus {
    background: var(--bg-input-focus);
    border-color: var(--accent);
}

.input-wrapper:focus-within .input-icon {
    color: var(--accent);
}

.has-error .form-control {
    border-color: var(--danger);
}

.has-error .form-control:focus {
    border-color: var(--danger);
}

.field-error {
    display: block;
    font-size: 0.75rem;
    color: var(--danger);
    margin-top: 0.35rem;
    font-weight: 500;
}

/* ── Password toggle ── */
.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: color var(--transition);
}

.toggle-password:hover {
    color: var(--text-secondary);
}

.toggle-password .eye-closed { display: none; }
.toggle-password.active .eye-open { display: none; }
.toggle-password.active .eye-closed { display: block; }

/* Password field needs right padding for toggle */
#password {
    padding-right: 2.75rem;
}

/* ── Checkbox ── */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    position: relative;
}

.checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1.5px solid var(--border-default);
    background: var(--bg-input);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    flex-shrink: 0;
}

.checkbox:hover {
    border-color: var(--accent);
    background: var(--bg-input-hover);
}

.checkbox:checked {
    background: var(--accent);
    border-color: var(--accent);
}

.checkbox:checked::after {
    content: '';
    position: absolute;
    left: 4.5px;
    top: 1.5px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* ── Login Button ── */
.btn-login {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.8rem 1.5rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), #0056b3);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
}

.btn-login:hover:not(:disabled)::before {
    opacity: 1;
}

.btn-login:hover:not(:disabled) {
    transform: translateY(-1px);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-login.btn-loading .btn-arrow { display: none; }

.spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Footer ── */
.login-footer {
    text-align: center;
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-default);
}

/* ── PoW Status (footer) ── */
.login-footer .pow-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-xs);
    transition: all 0.4s var(--ease);
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.login-footer .pow-status .pow-icon {
    flex-shrink: 0;
    transition: all 0.4s var(--ease);
}

/* Рабочее состояние */
.login-footer .pow-status.pow-working {
    color: var(--warning);
}
.login-footer .pow-status.pow-working .pow-icon {
    stroke: var(--warning);
    animation: powSpin 1.5s linear infinite;
}
@keyframes powSpin {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Готово — неон */
.login-footer .pow-status.pow-done {
    color: #00ffa3;
    text-shadow: 0 0 8px rgba(0, 255, 163, 0.6), 0 0 20px rgba(0, 255, 163, 0.3);
}
.login-footer .pow-status.pow-done .pow-icon {
    stroke: #00ffa3;
    filter: drop-shadow(0 0 4px rgba(0, 255, 163, 0.7)) drop-shadow(0 0 10px rgba(0, 255, 163, 0.4));
    animation: neonPulse 2.5s ease-in-out infinite;
}
@keyframes neonPulse {
    0%, 100% { filter: drop-shadow(0 0 4px rgba(0, 255, 163, 0.7)) drop-shadow(0 0 10px rgba(0, 255, 163, 0.4)); }
    50% { filter: drop-shadow(0 0 8px rgba(0, 255, 163, 0.9)) drop-shadow(0 0 20px rgba(0, 255, 163, 0.6)) drop-shadow(0 0 30px rgba(0, 255, 163, 0.3)); }
}

/* Ошибка */
.login-footer .pow-status.pow-error {
    color: var(--danger);
}
.login-footer .pow-status.pow-error .pow-icon {
    stroke: var(--danger);
}

/* HOME PAGE styles moved to panel.css */

/* ═══ Responsive ═══ */
@media (max-width: 480px) {
    .login-card {
        padding: 1.75rem 1.5rem;
        border-radius: 12px;
    }

    .login-header h1 {
        font-size: 1.2rem;
    }

    .top-nav {
        padding: 0 1rem;
    }

    .nav-user-info span {
        display: none;
    }
}

/* ═══ Selection ═══ */
::selection {
    background: var(--accent-soft);
    color: var(--text-primary);
}

/* ═══ Scrollbar ═══ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }