/* ================================================================
   auth.css — Shared styles for login & register pages
   Split-panel layout: left branding, right form
   ================================================================ */

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

/* ── Variables ─────────────────────────────────────────────────── */
:root {
    --font-sans: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

    /* Light */
    --bg:           #f9fffe;
    --bg-input:     #f0faf9;
    --fg:           #1a2e2c;
    --fg-muted:     #52726e;
    --card-bg:      #ffffff;
    --card-border:  #cfe8e6;

    --brand:        #0f766e;
    --brand-dark:   #0d6860;
    --brand-light:  rgba(15, 118, 110, 0.10);
    --amber:        #f59e0b;

    --danger:       #dc2626;
    --danger-bg:    rgba(220, 38, 38, 0.08);
    --danger-border:rgba(220, 38, 38, 0.25);
    --success:      #10b981;

    --shadow-sm:    0 2px 8px rgba(0,0,0,0.06);
    --shadow-md:    0 8px 28px rgba(0,0,0,0.10);
    --gradient:     linear-gradient(135deg, #0f766e 0%, #f59e0b 100%);
    --panel-grad:   linear-gradient(158deg, #053330 0%, #0f766e 50%, #1a7a6e 100%);

    --radius-sm:    8px;
    --radius-md:    12px;
    --radius-lg:    18px;
    --radius-full:  9999px;
    --ease:         cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg:           #0d1416;
    --bg-input:     #162326;
    --fg:           #e6edf0;
    --fg-muted:     #9aa5b1;
    --card-bg:      #111b1e;
    --card-border:  #1f3035;

    --brand:        #3fb6a8;
    --brand-dark:   #35a89a;
    --brand-light:  rgba(63, 182, 168, 0.13);
    --amber:        #f1b84b;

    --danger:       #f87171;
    --danger-bg:    rgba(248, 113, 113, 0.09);
    --danger-border:rgba(248, 113, 113, 0.25);

    --shadow-sm:    0 2px 10px rgba(0,0,0,0.35);
    --shadow-md:    0 8px 28px rgba(0,0,0,0.45);
    --gradient:     linear-gradient(135deg, #3fb6a8 0%, #f1b84b 100%);
    --panel-grad:   linear-gradient(158deg, #020c0b 0%, #0c2a26 50%, #102824 100%);
}

/* ── Base ──────────────────────────────────────────────────────── */
html { height: 100%; }
body {
    min-height: 100%;
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--fg);
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

/* ================================================================
   PAGE SHELL
   ================================================================ */
.auth-page {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* ================================================================
   LEFT PANEL — branding
   ================================================================ */
.auth-left {
    width: 52%;
    flex-shrink: 0;
    background: var(--panel-grad);
    display: flex;
    flex-direction: column;
    padding: 2.2rem 2.8rem;
    position: relative;
    overflow: hidden;
}

/* Dot-grid overlay */
.auth-left::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(0deg,  transparent, transparent 49px, rgba(255,255,255,0.03) 49px, rgba(255,255,255,0.03) 50px),
        repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(255,255,255,0.03) 49px, rgba(255,255,255,0.03) 50px);
    pointer-events: none;
    z-index: 0;
}

/* Decorative glow circle bottom-right */
.auth-left-glow {
    position: absolute;
    bottom: -100px; right: -100px;
    width: 380px; height: 380px;
    background: radial-gradient(circle, rgba(127,234,208,0.10) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}
/* Decorative glow circle top-left */
.auth-left-glow2 {
    position: absolute;
    top: -80px; left: -80px;
    width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(245,158,11,0.07) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}

/* Logo */
.auth-left-logo {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    color: rgba(255,255,255,0.92);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    letter-spacing: -0.2px;
}
.auth-left-logo-icon { font-size: 1.2rem; }

/* Central body */
.auth-left-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    gap: 1.6rem;
    text-align: center;
    padding: 2rem 0;
}

/* Cricket ball */
.auth-left-ball {
    width: 148px; height: 148px;
    animation: authBallFloat 5s ease-in-out infinite;
    filter: drop-shadow(0 14px 28px rgba(0,0,0,0.50));
}
@keyframes authBallFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    30%       { transform: translateY(-20px) rotate(18deg); }
    65%       { transform: translateY(-9px)  rotate(34deg); }
}

/* Tagline */
.auth-left-tagline {
    font-size: clamp(1.5rem, 2.2vw, 2.2rem);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.15;
    letter-spacing: -0.025em;
}
.auth-left-tagline-accent {
    display: block;
    background: linear-gradient(90deg, #7ee8d8, #f1b84b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-left-sub {
    font-size: 0.87rem;
    color: rgba(255,255,255,0.58);
    max-width: 300px;
    line-height: 1.65;
}

/* Feature list */
.auth-left-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    text-align: left;
    width: 100%;
    max-width: 270px;
}
.auth-left-features li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.78);
}
.auth-left-features li i {
    color: #7ee8d8;
    font-size: 0.82rem;
    flex-shrink: 0;
    width: 14px;
}

/* Footer */
.auth-left-footer {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.35);
    font-family: var(--font-mono);
    text-align: center;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    line-height: 1.7;
}
.auth-left-footer a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
}
.auth-left-footer a:hover { color: rgba(255,255,255,0.82); }

/* ================================================================
   RIGHT PANEL — form
   ================================================================ */
.auth-right {
    flex: 1;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem clamp(1.5rem, 5vw, 3.5rem);
    position: relative;
    overflow-y: auto;
    transition: background 0.3s var(--ease);
}

/* Theme toggle — top-right of right panel */
.auth-theme-btn {
    position: absolute;
    top: 1.4rem; right: 1.4rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-full);
    width: 38px; height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--fg-muted);
    font-size: 0.88rem;
    transition: all 0.2s var(--ease);
}
.auth-theme-btn:hover {
    border-color: var(--brand);
    color: var(--brand);
    background: var(--brand-light);
}

/* Form wrap */
.auth-form-wrap {
    width: 100%;
    max-width: 368px;
}

.auth-form-title {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--fg);
    margin-bottom: 0.35rem;
    line-height: 1.2;
}
.auth-form-sub {
    font-size: 0.88rem;
    color: var(--fg-muted);
    line-height: 1.55;
    margin-bottom: 1.8rem;
}

/* Error alert */
.auth-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: var(--danger);
    font-size: 0.84rem;
    font-weight: 500;
    margin-bottom: 1.3rem;
    animation: authSlideDown 0.28s var(--ease);
}
@keyframes authSlideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.auth-alert i { margin-top: 0.08rem; flex-shrink: 0; font-size: 0.9rem; }

/* Error alert variants */
.auth-alert--banned {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.35);
    color: #b45309;
}
.auth-alert--security {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.35);
    color: #1d4ed8;
}
.auth-alert--system {
    background: rgba(220, 38, 38, 0.12);
    border-color: rgba(220, 38, 38, 0.4);
    color: #991b1b;
}
.auth-alert--validation {
    background: rgba(99, 102, 241, 0.08);
    border-color: rgba(99, 102, 241, 0.3);
    color: #4338ca;
}
[data-theme="dark"] .auth-alert--banned  { color: #fbbf24; }
[data-theme="dark"] .auth-alert--security { color: #60a5fa; }
[data-theme="dark"] .auth-alert--system  { color: #f87171; }
[data-theme="dark"] .auth-alert--validation { color: #a5b4fc; }

/* Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Field */
.auth-field { display: flex; flex-direction: column; gap: 0.42rem; }

.auth-label {
    font-size: 0.81rem;
    font-weight: 600;
    color: var(--fg);
    letter-spacing: 0.015em;
}

.auth-input-wrap { position: relative; }

.auth-input-icon {
    position: absolute;
    left: 0.95rem; top: 50%;
    transform: translateY(-50%);
    color: var(--fg-muted);
    font-size: 0.88rem;
    pointer-events: none;
    transition: color 0.2s var(--ease);
}

.auth-input {
    width: 100%;
    height: 46px;
    padding: 0 1rem 0 2.65rem;
    border: 1.5px solid var(--card-border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--fg);
    font-size: 0.93rem;
    font-family: var(--font-sans);
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.auth-input:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px var(--brand-light);
    background: var(--card-bg);
}
.auth-input::placeholder { color: var(--fg-muted); opacity: 0.75; }
.auth-input-wrap:focus-within .auth-input-icon { color: var(--brand); }

/* Password input — leave room for eye button */
.auth-input--pw { padding-right: 2.8rem; }

/* Password eye toggle */
.auth-eye-btn {
    position: absolute;
    right: 0.85rem; top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--fg-muted);
    font-size: 0.88rem;
    padding: 0.25rem;
    line-height: 1;
    transition: color 0.2s var(--ease);
}
.auth-eye-btn:hover { color: var(--brand); }

/* Submit button */
.auth-btn {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--brand);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.22s var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    box-shadow: 0 4px 16px rgba(15,118,110,0.30);
}
.auth-btn:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15,118,110,0.40);
}
.auth-btn:active { transform: translateY(0); }
.auth-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none !important; box-shadow: none; }

[data-theme="dark"] .auth-btn       { box-shadow: 0 4px 16px rgba(63,182,168,0.26); }
[data-theme="dark"] .auth-btn:hover { box-shadow: 0 8px 24px rgba(63,182,168,0.36); }

/* Divider */
.auth-divider {
    height: 1px;
    background: var(--card-border);
    margin: 1.5rem 0 1.2rem;
}

/* Link rows */
.auth-link-row {
    text-align: center;
    font-size: 0.85rem;
    color: var(--fg-muted);
    line-height: 1.7;
}
.auth-link-row + .auth-link-row { margin-top: 0.3rem; }
.auth-link-row a {
    color: var(--brand);
    text-decoration: none;
    font-weight: 600;
}
.auth-link-row a:hover { text-decoration: underline; }
.auth-link-row .sep {
    margin: 0 0.4rem;
    color: var(--card-border);
}

/* Password hint */
.auth-hint {
    font-size: 0.75rem;
    color: var(--fg-muted);
    margin-top: 0.2rem;
    font-family: var(--font-mono);
}

/* ================================================================
   MOBILE — left panel becomes a compact top bar
   ================================================================ */
@media (max-width: 768px) {
    .auth-page { flex-direction: column; }

    .auth-left {
        width: 100%;
        flex-direction: row;
        align-items: center;
        padding: 1.1rem 1.4rem;
        gap: 1rem;
    }
    .auth-left::before { display: none; }
    .auth-left-body, .auth-left-footer, .auth-left-glow, .auth-left-glow2 { display: none; }

    .auth-right {
        flex: 1;
        justify-content: flex-start;
        padding: 2rem 1.4rem 3rem;
    }
    .auth-theme-btn { top: 1rem; right: 1rem; }
    .auth-form-wrap { max-width: 100%; }
}