/* ================================================================
   VidGram — Login Page Stylesheet
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ----------------------------------------------------------------
   1. DESIGN TOKENS
   ---------------------------------------------------------------- */
:root {
    /* Surfaces */
    --bg: #f5f6fb;
    --surface: #ffffff;
    --surface2: #f8fafc;
    --surface3: #eef1f7;

    /* Borders */
    --border: rgba(15,23,42,0.08);
    --border2: rgba(15,23,42,0.14);

    /* Accents */
    --accent: #4f46e5;
    --accent-h: #4338ca;
    --accent-dim: rgba(79,70,229,0.10);
    --accent2: #8b5cf6;
    --accent2-dim: rgba(139,92,246,0.10);

    /* Semantic */
    --success: #059669;
    --success-dim: rgba(5,150,105,0.10);
    --warning: #d97706;
    --warning-dim: rgba(217,119,6,0.10);
    --danger: #dc2626;
    --danger-dim: rgba(220,38,38,0.10);
    --info: #2563eb;
    --info-dim: rgba(37,99,235,0.10);

    /* Text */
    --text: #0f172a;
    --text2: #475569;
    --text3: #94a3b8;

    /* Layout */
    --radius: 10px;
    --radius-lg: 20px;

    /* Shadows */
    --shadow: 0 4px 24px rgba(15,23,42,0.06);
    --shadow-lg: 0 32px 80px rgba(15,23,42,0.14);

    /* Transitions */
    --transition: 0.2s ease;

    /* Font */
    --font: 'Space Grotesk', system-ui, -apple-system, sans-serif;
}

/* ----------------------------------------------------------------
   1b. DARK THEME
   ---------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #090b10;
        --surface: #0f1118;
        --surface2: #161923;
        --surface3: #1e2230;

        --border: rgba(255,255,255,0.06);
        --border2: rgba(255,255,255,0.12);

        --accent: #7c5cfc;
        --accent-h: #6d4de8;
        --accent-dim: rgba(124,92,252,0.12);
        --accent2: #a78bfa;
        --accent2-dim: rgba(167,139,250,0.12);

        --success: #34d399;
        --success-dim: rgba(52,211,153,0.12);
        --warning: #fbbf24;
        --warning-dim: rgba(251,191,36,0.12);
        --danger: #f87171;
        --danger-dim: rgba(248,113,113,0.12);
        --info: #60a5fa;
        --info-dim: rgba(96,165,250,0.12);

        --text: #e8eaf0;
        --text2: #9ca3af;
        --text3: #6b7280;

        --shadow: 0 4px 24px rgba(0,0,0,0.25);
        --shadow-lg: 0 32px 80px rgba(0,0,0,0.45);
    }
}

:root[data-theme="dark"] {
    --bg: #090b10;
    --surface: #0f1118;
    --surface2: #161923;
    --surface3: #1e2230;

    --border: rgba(255,255,255,0.06);
    --border2: rgba(255,255,255,0.12);

    --accent: #7c5cfc;
    --accent-h: #6d4de8;
    --accent-dim: rgba(124,92,252,0.12);
    --accent2: #a78bfa;
    --accent2-dim: rgba(167,139,250,0.12);

    --success: #34d399;
    --success-dim: rgba(52,211,153,0.12);
    --warning: #fbbf24;
    --warning-dim: rgba(251,191,36,0.12);
    --danger: #f87171;
    --danger-dim: rgba(248,113,113,0.12);
    --info: #60a5fa;
    --info-dim: rgba(96,165,250,0.12);

    --text: #e8eaf0;
    --text2: #9ca3af;
    --text3: #6b7280;

    --shadow: 0 4px 24px rgba(0,0,0,0.25);
    --shadow-lg: 0 32px 80px rgba(0,0,0,0.45);
}

/* ----------------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    font-weight: 400;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-h); text-decoration: underline; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--text3);
    border-radius: 3px;
}

/* ----------------------------------------------------------------
   3. BACKGROUND PATTERN & ORBS
   ---------------------------------------------------------------- */
.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

/* Grid pattern */
.login-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.7;
}

/* Accent orb — top left */
.login-bg .orb-1 {
    position: absolute;
    top: -120px;
    left: -80px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.12;
    border-radius: 50%;
    filter: blur(80px);
    animation: orbFloat1 12s ease-in-out infinite;
}

/* Accent2 orb — bottom right */
.login-bg .orb-2 {
    position: absolute;
    bottom: -100px;
    right: -60px;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--accent2) 0%, transparent 70%);
    opacity: 0.10;
    border-radius: 50%;
    filter: blur(80px);
    animation: orbFloat2 14s ease-in-out infinite;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 20px); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, -30px); }
}

/* ----------------------------------------------------------------
   4. LOGIN CARD
   ---------------------------------------------------------------- */
.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    padding: 16px;
    animation: loginEnter 0.5s ease;
}

@keyframes loginEnter {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow:
        var(--shadow-lg),
        inset 0 1px 0 rgba(255,255,255,0.06);
    overflow: hidden;
}

/* ----------------------------------------------------------------
   5. BRAND HEADER
   ---------------------------------------------------------------- */
.login-header {
    text-align: center;
    padding: 36px 32px 24px;
}

.login-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.login-brand-icon {
    width: 44px;
    height: 44px;
    background: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 14px rgba(79,70,229,0.3);
}

.login-brand-icon svg {
    width: 24px;
    height: 24px;
}

.login-brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.03em;
}

.login-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.login-header p {
    font-size: 0.84rem;
    color: var(--text3);
}

/* ----------------------------------------------------------------
   6. LOGIN FORM
   ---------------------------------------------------------------- */
.login-body {
    padding: 8px 32px 32px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.login-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.login-field label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text2);
}

.login-field label .required {
    color: var(--danger);
    margin-left: 2px;
}

.login-input {
    font-family: var(--font);
    font-size: 0.88rem;
    color: var(--text);
    background: var(--surface2);
    border: 1px solid var(--border2);
    border-radius: var(--radius);
    padding: 11px 16px;
    transition: all var(--transition);
    width: 100%;
    outline: none;
}

.login-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
    background: var(--surface);
}

.login-input::placeholder {
    color: var(--text3);
}

.login-input.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-dim);
}

/* Password field with toggle */
.password-field {
    position: relative;
}

.password-field .login-input {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border: none;
    background: transparent;
    color: var(--text3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm, 6px);
    transition: all var(--transition);
}

.password-toggle:hover {
    color: var(--text2);
    background: var(--surface3);
}

.password-toggle svg {
    width: 18px;
    height: 18px;
}

/* Form extras row */
.login-extras {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text2);
}

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

.forgot-link {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    transition: color var(--transition);
}

.forgot-link:hover {
    color: var(--accent-h);
    text-decoration: underline;
}

/* Submit button */
.login-submit {
    width: 100%;
    padding: 12px 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-submit:hover {
    background: var(--accent-h);
    box-shadow: 0 6px 20px rgba(79,70,229,0.3);
}

.login-submit:active {
    transform: scale(0.98);
}

.login-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.login-submit svg {
    width: 18px;
    height: 18px;
}

/* Loading state */
.login-submit .spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ----------------------------------------------------------------
   7. ERROR MESSAGE AREA
   ---------------------------------------------------------------- */
.login-error {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: var(--danger-dim);
    border: 1px solid rgba(220,38,38,0.15);
    border-radius: var(--radius);
    animation: shakeError 0.4s ease;
}

.login-error svg {
    width: 18px;
    height: 18px;
    color: var(--danger);
    flex-shrink: 0;
    margin-top: 1px;
}

.login-error p {
    font-size: 0.82rem;
    color: var(--danger);
    font-weight: 500;
    line-height: 1.4;
}

@keyframes shakeError {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Success message */
.login-success {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: var(--success-dim);
    border: 1px solid rgba(5,150,105,0.15);
    border-radius: var(--radius);
}

.login-success svg {
    width: 18px;
    height: 18px;
    color: var(--success);
    flex-shrink: 0;
    margin-top: 1px;
}

.login-success p {
    font-size: 0.82rem;
    color: var(--success);
    font-weight: 500;
}

/* ----------------------------------------------------------------
   8. FOOTER
   ---------------------------------------------------------------- */
.login-footer {
    text-align: center;
    padding: 20px 32px 28px;
    border-top: 1px solid var(--border);
}

.login-footer p {
    font-size: 0.78rem;
    color: var(--text3);
}

.login-footer a {
    font-weight: 600;
    color: var(--accent);
}

.login-footer a:hover {
    color: var(--accent-h);
}

/* External footer (below card) */
.login-external-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.75rem;
    color: var(--text3);
}

.login-external-footer a {
    color: var(--text3);
    margin: 0 8px;
    transition: color var(--transition);
}

.login-external-footer a:hover {
    color: var(--text2);
}

/* ----------------------------------------------------------------
   9. DIVIDER WITH TEXT
   ---------------------------------------------------------------- */
.login-divider {
    display: flex;
    align-items: center;
    gap: 14px;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.login-divider span {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ----------------------------------------------------------------
   10. THEME TOGGLE (on login page)
   ---------------------------------------------------------------- */
.login-theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10;
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}

.login-theme-toggle:hover {
    background: var(--surface3);
    color: var(--warning);
}

.login-theme-toggle svg {
    width: 18px;
    height: 18px;
}

/* ----------------------------------------------------------------
   11. RESPONSIVE
   ---------------------------------------------------------------- */
@media (max-width: 480px) {
    .login-wrapper {
        max-width: 100%;
        padding: 12px;
    }

    .login-card {
        border-radius: 14px;
    }

    .login-header {
        padding: 28px 20px 18px;
    }

    .login-body {
        padding: 6px 20px 24px;
    }

    .login-footer {
        padding: 16px 20px 22px;
    }

    .login-brand-icon {
        width: 38px;
        height: 38px;
    }

    .login-brand-name {
        font-size: 1.3rem;
    }

    .login-header h2 {
        font-size: 1.05rem;
    }

    .login-extras {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .login-bg .orb-1 {
        width: 300px;
        height: 300px;
    }

    .login-bg .orb-2 {
        width: 280px;
        height: 280px;
    }

    .login-theme-toggle {
        top: 12px;
        right: 12px;
    }
}

@media (max-width: 360px) {
    .login-header {
        padding: 24px 16px 14px;
    }

    .login-body {
        padding: 4px 16px 20px;
    }

    .login-footer {
        padding: 14px 16px 18px;
    }

    .login-brand {
        flex-direction: column;
        gap: 8px;
    }
}