/* =====================================================================
   LOGIN — Premium dark theme
   ===================================================================== */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1c1c1c;
    --bg-elevated: #222222;
    --border-subtle: rgba(212, 175, 55, 0.15);
    --border-strong: rgba(212, 175, 55, 0.4);
    --border-line: #2a2a2a;
    --gold: #D4AF37;
    --gold-dim: #a88c2c;
    --gold-bright: #f0c95a;
    --red: #8b0000;
    --red-bright: #c92020;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #6a6a6a;
    --font-display: 'Bebas Neue', sans-serif;
    --font-serif: 'Bodoni Moda', serif;
    --font-body: 'Manrope', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* === Wrapper === */
.login-wrapper {
    min-height: 100vh;
    display: grid;
    place-items: center;
    position: relative;
    padding: 1.5rem;
}

/* === Background atmosphere === */
.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse 600px 400px at 85% 15%, rgba(139, 0, 0, 0.18), transparent 60%),
        radial-gradient(ellipse 700px 500px at 15% 85%, rgba(212, 175, 55, 0.08), transparent 60%),
        linear-gradient(180deg, #050505, #141414);
}

.login-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(212, 175, 55, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 175, 55, 0.04) 1px, transparent 1px);
    background-size: 80px 80px;
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
            mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.login-bg::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold) 30%, var(--gold) 70%, transparent);
    opacity: 0.4;
}

/* === Card === */
.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    background: linear-gradient(160deg, rgba(20, 20, 20, 0.95), rgba(10, 10, 10, 0.95));
    border: 1px solid var(--border-subtle);
    padding: 3rem 2.75rem 2rem;
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(212, 175, 55, 0.03),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
    animation: cardIn 700ms cubic-bezier(0.16, 1, 0.3, 1) both;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    width: 70%;
    height: 1px;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0.7;
}

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

/* === Brand === */
.brand {
    text-align: center;
    margin-bottom: 2.5rem;
    animation: fadeIn 800ms 200ms backwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.brand-mark {
    display: inline-block;
    width: 52px;
    height: 52px;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--gold), var(--gold-dim));
    transform: rotate(45deg);
    position: relative;
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.3);
    animation: pulse 4s ease-in-out infinite;
}

.brand-mark::after {
    content: '';
    position: absolute;
    inset: 7px;
    background: var(--bg-secondary);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 40px rgba(212, 175, 55, 0.25); }
    50%      { box-shadow: 0 0 60px rgba(212, 175, 55, 0.45); }
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.8rem;
    letter-spacing: 0.25em;
    color: var(--text-primary);
    font-weight: 400;
    margin-bottom: 0.4rem;
    line-height: 1;
}

.brand-sub {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.9rem;
    color: var(--gold);
    letter-spacing: 0.05em;
}

/* === Alert === */
.login-alert {
    background: rgba(139, 0, 0, 0.15);
    border-left: 3px solid var(--red-bright);
    color: #ffaaaa;
    padding: 0.85rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    animation: alertIn 400ms ease;
}

@keyframes alertIn {
    from { opacity: 0; transform: translateX(-10px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* === Form === */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn 600ms 300ms backwards;
}

.field { display: flex; flex-direction: column; gap: 0.5rem; }

.field label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--text-secondary);
    font-weight: 600;
}

.field input {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-line);
    padding: 0.75rem 0;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 250ms ease;
    outline: none;
    width: 100%;
}

.field input:focus { border-bottom-color: var(--gold); }

.field input:-webkit-autofill,
.field input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-primary);
    -webkit-box-shadow: 0 0 0 1000px var(--bg-secondary) inset;
    transition: background-color 9999s ease-in-out 0s;
}

.password-wrap { position: relative; display: flex; align-items: center; }

.toggle-pwd {
    position: absolute;
    right: 0;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    font-size: 1rem;
    transition: color 200ms ease;
}

.toggle-pwd:hover { color: var(--gold); }

/* === Submit === */
.btn-login {
    margin-top: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--gold), var(--gold-dim));
    color: var(--bg-primary);
    border: none;
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0.3em;
    cursor: pointer;
    transition: all 300ms ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.btn-login i { transition: transform 300ms ease; }

.btn-login::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 600ms ease;
}

.btn-login:hover {
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
    transform: translateY(-1px);
}

.btn-login:hover::after { left: 100%; }
.btn-login:hover i      { transform: translateX(4px); }
.btn-login:active       { transform: translateY(0); }

/* === Footer === */
.login-footer {
    margin-top: 2.5rem;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* === Responsive === */
@media (max-width: 480px) {
    .login-card { padding: 2.5rem 1.5rem 1.5rem; }
    .brand-name { font-size: 1.5rem; }
}