/* ==========================================================================
   LOGIN PAGE — Mooncraft
   Multi-theme support (Dark, Light, Auto) · CSS custom properties · BEM naming
   ========================================================================== */

/* ── Theme Variables (Dark Mode - Default) ────────────────────────────────── */
:root,
:root[data-theme="dark"] {
    --color-bg: #0f1117;
    --color-bg-card: #1a1d27;
    --color-bg-input: #12141c;
    --color-border: #2a2d3a;
    --color-border-focus: #5b8de0;
    --color-text: #e4e6f0;
    --color-text-muted: #8b8fa3;
    --color-primary: #5b8de0;
    --color-primary-hover: #6d9de8;
    --color-error: #ff4d6a;
    --color-error-bg: rgba(255, 77, 106, 0.1);
    --color-success: #34d399;
    --color-success-bg: rgba(52, 211, 153, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition: 0.2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
        Roboto, Oxygen, Ubuntu, sans-serif;
}

/* ── Theme Variables (Light Mode) ─────────────────────────────────────── */
:root[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-card: #f8f9fb;
    --color-bg-input: #f0f1f5;
    --color-border: #d0d5e0;
    --color-border-focus: #5a4ce6;
    --color-text: #2d3748;
    --color-text-muted: #718096;
    --color-primary: #5a4ce6;
    --color-primary-hover: #6c63ff;
    --color-error: #d73a49;
    --color-error-bg: rgba(215, 58, 73, 0.1);
    --color-success: #22863a;
    --color-success-bg: rgba(34, 134, 58, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --transition: 0.2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
        Roboto, Oxygen, Ubuntu, sans-serif;
}

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

/* ── Page ─────────────────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    font-family: var(--font);
    color: var(--color-text);
    padding: calc(72px + 2.25rem) 1rem 2rem;
    position: relative;
    overflow: hidden;
    --nav-height: 72px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Base background */
    background-image:
        radial-gradient(circle at 20% 50%, rgba(108, 99, 255, 0.04) 0%, transparent 55%),
        radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.03) 0%, transparent 45%);
}

.login-page::before,
.login-page::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

/* ── Aurora Borealis layer ───────────────────────────────────────── */
.aurora {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.aurora__band {
    position: absolute;
    width: 140vw;
    height: 42vh;
    left: -20vw;
    top: -6vh;
    transform-origin: center top;
    mix-blend-mode: screen;
    filter: blur(20px) saturate(130%);
    opacity: 0.38;
    border-radius: 0 0 55% 45%;
}

.aurora__band--1 {
    background: linear-gradient(95deg,
            rgba(20, 184, 166, 0.00) 0%,
            rgba(20, 184, 166, 0.18) 15%,
            rgba(59, 130, 246, 0.28) 35%,
            rgba(147, 51, 234, 0.22) 55%,
            rgba(236, 72, 153, 0.14) 75%,
            rgba(20, 184, 166, 0.00) 100%);
    animation: auroraSweepA 16s ease-in-out infinite alternate;
}

.aurora__band--2 {
    top: 4vh;
    height: 38vh;
    background: linear-gradient(108deg,
            rgba(139, 92, 246, 0.00) 0%,
            rgba(139, 92, 246, 0.16) 20%,
            rgba(34, 197, 94, 0.18) 40%,
            rgba(59, 130, 246, 0.20) 65%,
            rgba(139, 92, 246, 0.00) 100%);
    opacity: 0.24;
    animation: auroraSweepB 18s ease-in-out infinite alternate;
}

.aurora__band--3 {
    top: 1vh;
    height: 46vh;
    background: linear-gradient(100deg,
            rgba(236, 72, 153, 0.00) 0%,
            rgba(236, 72, 153, 0.12) 25%,
            rgba(249, 115, 22, 0.14) 45%,
            rgba(59, 130, 246, 0.12) 68%,
            rgba(236, 72, 153, 0.00) 100%);
    opacity: 0.20;
    animation: auroraSweepC 20s ease-in-out infinite alternate;
}

.aurora__band--4 {
    top: -2vh;
    height: 36vh;
    background: linear-gradient(92deg,
            rgba(20, 184, 166, 0.00) 0%,
            rgba(20, 184, 166, 0.14) 28%,
            rgba(139, 92, 246, 0.18) 50%,
            rgba(34, 197, 94, 0.12) 72%,
            rgba(20, 184, 166, 0.00) 100%);
    opacity: 0.18;
    animation: auroraSweepD 14s ease-in-out infinite alternate;
}

@keyframes auroraSweepA {
    0% {
        transform: translate3d(-4vw, -2vh, 0) skewX(-12deg) scaleX(0.95);
        opacity: 0.12;
    }

    50% {
        transform: translate3d(2vw, 0vh, 0) skewX(0deg) scaleX(1.05);
        opacity: 0.22;
    }

    100% {
        transform: translate3d(5vw, -1vh, 0) skewX(12deg) scaleX(1.12);
        opacity: 0.16;
    }
}

@keyframes auroraSweepB {
    0% {
        transform: translate3d(3vw, -1vh, 0) skewX(14deg) scaleX(0.92);
        opacity: 0.14;
    }

    50% {
        transform: translate3d(-2vw, 0vh, 0) skewX(-2deg) scaleX(1.08);
        opacity: 0.20;
    }

    100% {
        transform: translate3d(-5vw, -2vh, 0) skewX(-14deg) scaleX(1.15);
        opacity: 0.12;
    }
}

@keyframes auroraSweepC {
    0% {
        transform: translate3d(-3vw, -1.5vh, 0) skewX(-10deg) scaleX(0.98);
        opacity: 0.12;
    }

    50% {
        transform: translate3d(1vw, -1vh, 0) skewX(4deg) scaleX(1.06);
        opacity: 0.18;
    }

    100% {
        transform: translate3d(4vw, -2.5vh, 0) skewX(10deg) scaleX(1.1);
        opacity: 0.14;
    }
}

@keyframes auroraSweepD {
    0% {
        transform: translate3d(-2vw, -1vh, 0) skewX(6deg) scaleX(0.96);
        opacity: 0.10;
    }

    50% {
        transform: translate3d(2vw, -0.5vh, 0) skewX(-2deg) scaleX(1.04);
        opacity: 0.16;
    }

    100% {
        transform: translate3d(3.5vw, -1.5vh, 0) skewX(-6deg) scaleX(1.08);
        opacity: 0.12;
    }
}

.login-page::before {
    background-image:
        /* Bright foreground stars — large & punchy */
        radial-gradient(3px 3px at 7% 18%, rgba(255, 255, 255, 1), transparent 80%),
        radial-gradient(2.5px 2.5px at 16% 62%, rgba(220, 230, 255, 0.95), transparent 80%),
        radial-gradient(3.5px 3.5px at 31% 33%, rgba(255, 255, 255, 1), transparent 80%),
        radial-gradient(2px 2px at 44% 78%, rgba(200, 215, 255, 0.9), transparent 80%),
        radial-gradient(3px 3px at 56% 25%, rgba(255, 255, 255, 1), transparent 80%),
        radial-gradient(2.5px 2.5px at 69% 68%, rgba(220, 230, 255, 0.92), transparent 80%),
        radial-gradient(3.5px 3.5px at 82% 39%, rgba(255, 255, 255, 1), transparent 80%),
        radial-gradient(2.5px 2.5px at 91% 14%, rgba(255, 255, 255, 0.96), transparent 80%),
        radial-gradient(2px 2px at 22% 88%, rgba(200, 220, 255, 0.88), transparent 80%),
        radial-gradient(3px 3px at 48% 52%, rgba(255, 255, 255, 0.98), transparent 80%),
        radial-gradient(2px 2px at 73% 11%, rgba(220, 235, 255, 0.9), transparent 80%),
        radial-gradient(2.5px 2.5px at 5% 44%, rgba(255, 255, 255, 0.94), transparent 80%),
        /* Deep-space lunar glow */
        radial-gradient(70rem 70rem at 12% 12%, rgba(91, 141, 224, 0.18), transparent 65%),
        radial-gradient(40rem 40rem at 88% 78%, rgba(200, 160, 96, 0.08), transparent 60%);
    animation: loginStarsTwinkleA 1.8s ease-in-out infinite alternate, loginStarsDriftA 18s linear infinite;
}

.login-page::after {
    background-image:
        /* Mid-field stars */
        radial-gradient(2px 2px at 10% 35%, rgba(200, 220, 255, 0.88), transparent 80%),
        radial-gradient(2.5px 2.5px at 23% 12%, rgba(255, 255, 255, 0.95), transparent 80%),
        radial-gradient(1.8px 1.8px at 36% 54%, rgba(220, 230, 255, 0.85), transparent 80%),
        radial-gradient(2.5px 2.5px at 49% 21%, rgba(255, 255, 255, 0.92), transparent 80%),
        radial-gradient(1.8px 1.8px at 63% 44%, rgba(200, 215, 255, 0.88), transparent 80%),
        radial-gradient(2px 2px at 74% 80%, rgba(255, 255, 255, 0.9), transparent 80%),
        radial-gradient(2.5px 2.5px at 86% 27%, rgba(220, 235, 255, 0.94), transparent 80%),
        radial-gradient(1.8px 1.8px at 94% 60%, rgba(200, 220, 255, 0.86), transparent 80%),
        radial-gradient(2px 2px at 38% 90%, rgba(255, 255, 255, 0.88), transparent 80%),
        radial-gradient(2.5px 2.5px at 60% 70%, rgba(220, 230, 255, 0.92), transparent 80%),
        radial-gradient(1.8px 1.8px at 15% 75%, rgba(255, 255, 255, 0.86), transparent 80%),
        /* Warm lunar nebula accent */
        radial-gradient(50rem 50rem at 84% 88%, rgba(200, 160, 96, 0.1), transparent 60%),
        radial-gradient(35rem 35rem at 20% 30%, rgba(180, 200, 230, 0.07), transparent 55%);
    animation: loginStarsTwinkleB 2.1s ease-in-out infinite alternate, loginStarsDriftB 22s linear infinite;
}

@keyframes loginStarsTwinkleA {
    from {
        opacity: 0.35;
    }

    to {
        opacity: 1;
    }
}

@keyframes loginStarsTwinkleB {
    from {
        opacity: 0.3;
    }

    to {
        opacity: 1;
    }
}

@keyframes loginStarsDriftA {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(1.8rem, -1rem, 0);
    }
}

@keyframes loginStarsDriftB {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(-1.4rem, 0.8rem, 0);
    }
}

/* ── Container ────────────────────────────────────────────────────── */
.login-container {
    width: 100%;
    max-width: 460px;
    position: relative;
    z-index: 1;
}

/* ── Card ─────────────────────────────────────────────────────────── */
.login-card {
    position: relative;
    background:
        linear-gradient(160deg, rgba(0, 0, 0, 0.3) 0%, rgba(30, 40, 60, 0.2) 30%, transparent 70%),
        rgba(3, 5, 12, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 2rem;
    backdrop-filter: blur(28px) saturate(160%) brightness(0.78);
    -webkit-backdrop-filter: blur(28px) saturate(160%) brightness(0.78);
    transform: perspective(1600px) rotateX(4deg) translateZ(0);
    transform-origin: center bottom;
    box-shadow:
        0 60px 120px rgba(0, 0, 0, 0.85),
        0 28px 56px rgba(0, 0, 0, 0.65),
        0 10px 20px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.08),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5),
        inset 1px 0 0 rgba(255, 255, 255, 0.04),
        inset -1px 0 0 rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-card:hover {
    transform: perspective(1600px) rotateX(2deg) translateZ(0) translateY(-4px);
    backdrop-filter: blur(32px) saturate(180%) brightness(0.82);
    -webkit-backdrop-filter: blur(32px) saturate(180%) brightness(0.82);
    box-shadow:
        0 70px 140px rgba(0, 0, 0, 0.88),
        0 35px 70px rgba(0, 0, 0, 0.70),
        0 15px 30px rgba(0, 0, 0, 0.55),
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -1px 0 rgba(0, 0, 0, 0.55),
        inset 1px 0 0 rgba(255, 255, 255, 0.06),
        inset -1px 0 0 rgba(0, 0, 0, 0.35);
}

.login-card::before {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    background: linear-gradient(132deg, rgba(0, 0, 0, 0.4) 0%, rgba(20, 40, 80, 0.15) 20%, rgba(255, 255, 255, 0.06) 28%, transparent 52%);
    pointer-events: none;
    transition: background 0.4s ease;
}

.login-card:hover::before {
    background: linear-gradient(132deg, rgba(0, 0, 0, 0.3) 0%, rgba(20, 40, 80, 0.10) 20%, rgba(255, 255, 255, 0.10) 28%, transparent 52%);
}

.login-card::after {
    content: '';
    position: absolute;
    width: 14rem;
    height: 14rem;
    right: -4rem;
    top: -5rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200, 160, 96, 0.12), transparent 70%);
    filter: blur(8px);
    pointer-events: none;
}

.login-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
}

.login-card__text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.login-card__footer {
    text-align: center;
    margin-top: 1.25rem;
    font-size: 0.875rem;
}

/* ── Alerts ───────────────────────────────────────────────────────── */
.login-alert {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
    line-height: 1.4;
}

.login-alert--error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid rgba(255, 77, 106, 0.2);
}

.login-alert--success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.login-alert svg {
    flex-shrink: 0;
}

/* ── Form ─────────────────────────────────────────────────────────── */
.login-form__group {
    margin-bottom: 1.25rem;
}

.login-form__label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.login-form__icon {
    position: absolute;
    left: 0.875rem;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color var(--transition);
}

.login-form__input {
    width: 100%;
    padding: 0.75rem 0.875rem 0.75rem 2.75rem;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: var(--font);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.login-form__input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

.login-form__input:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(91, 141, 224, 0.22);
}

.login-form__input:focus~.login-form__icon,
.login-form__input:focus+.login-form__icon {
    color: var(--color-primary);
}

/* Password toggle */
.login-form__toggle-pw {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    transition: color var(--transition);
}

.login-form__toggle-pw:hover {
    color: var(--color-text);
}

/* ── Row (remember + forgot) ──────────────────────────────────────── */
.login-form__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.login-form__checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
}

.login-form__checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.login-form__link {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.login-form__link:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* ── Submit Button ────────────────────────────────────────────────── */
.login-form__submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #5b8de0, #3a6abf);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.login-form__submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(91, 141, 224, 0.5);
}

.login-form__submit:active {
    transform: translateY(0);
}

.login-form__submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Spinner (hidden by default) */
.login-form__spinner {
    display: none;
    animation: spin 0.8s linear infinite;
}

.login-form__submit--loading .login-form__spinner {
    display: inline-block;
}

.login-form__submit--loading span {
    display: none;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ── Footer ───────────────────────────────────────────────────────── */
.login-footer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 2rem;
    opacity: 0.6;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
        transform: none;
    }
}