/* ═══════════════════════════════════════════════════
   AITS Purchase Portal — Auth Pages Stylesheet
   Light / Dark mode via data-theme on <html>
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=Syne:wght@400;600;700;800&family=Space+Grotesk:wght@600;700&display=swap');

/* ── DARK MODE (default) ── */
:root,
[data-theme="dark"] {
    --bg: #080810;
    --surface: #0f0f1a;
    --surface-1: #0f0f1a;
    --surface-2: #161625;
    --surface-3: rgba(255,255,255,0.04);
    --border: rgba(255,255,255,0.07);
    --border-focus: rgba(124,106,247,0.6);
    --accent: #7c6af7;
    --accent-glow: rgba(124,106,247,0.25);
    --danger: #ef4b6c;
    --danger-glow: rgba(239,75,108,0.25);
    --success: #2dd98f;
    --success-glow: rgba(45,217,143,0.2);
    --text-primary: #e8e8f0;
    --text-muted: #6b6b88;
    --text-subtle: #3a3a55;
    --input-bg: #0d0d1e;
    --shadow: 0 24px 64px rgba(0,0,0,0.6);
    --gradient-auth: radial-gradient(ellipse 80% 60% at 20% -10%, rgba(124,106,247,0.12) 0%, transparent 60%), radial-gradient(ellipse 60% 40% at 80% 110%, rgba(239,75,108,0.08) 0%, transparent 60%), var(--bg);
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.2s ease;
    --modal-bg: #1a1d26;
    --scrollbar-thumb: rgba(124,108,248,0.45);
    --scrollbar-thumb-hover: rgba(124,108,248,0.7);
    --scrollbar-track: rgba(255,255,255,0.04);
    --hover-overlay: rgba(255,255,255,0.06);
}

/* ── LIGHT MODE ── */
[data-theme="light"] {
    --bg: #f0f0f8;
    --surface: #ffffff;
    --surface-1: #ffffff;
    --surface-2: #f4f4fb;
    --surface-3: rgba(0,0,0,0.03);
    --border: rgba(0,0,0,0.09);
    --border-focus: rgba(124,106,247,0.6);
    --accent: #6355e8;
    --accent-glow: rgba(99,85,232,0.15);
    --danger: #d93052;
    --danger-glow: rgba(217,48,82,0.15);
    --success: #18a86b;
    --success-glow: rgba(24,168,107,0.15);
    --text-primary: #1a1a2e;
    --text-muted: #5a5a7a;
    --text-subtle: #9090aa;
    --input-bg: #fafafa;
    --shadow: 0 8px 32px rgba(0,0,0,0.1);
    --gradient-auth: radial-gradient(ellipse 80% 60% at 20% -10%, rgba(124,106,247,0.07) 0%, transparent 60%), radial-gradient(ellipse 60% 40% at 80% 110%, rgba(239,75,108,0.05) 0%, transparent 60%), var(--bg);
    --modal-bg: #ffffff;
    --scrollbar-thumb: rgba(99,85,232,0.35);
    --scrollbar-thumb-hover: rgba(99,85,232,0.6);
    --scrollbar-track: rgba(0,0,0,0.06);
    --hover-overlay: rgba(0,0,0,0.04);
    --transition: 0.2s ease;
}

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

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
    transition: background 0.3s ease, color 0.3s ease;
}

/* ── Global themed scrollbars ── */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}
*::-webkit-scrollbar { width: 6px; height: 6px; }
*::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 4px; }
*::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
*::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
*::-webkit-scrollbar-corner { background: transparent; }

.auth-wrapper {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
    background:
        radial-gradient(ellipse 70% 50% at 15% 8%,  rgba(124,106,247,0.16) 0%, transparent 60%),
        radial-gradient(ellipse 55% 45% at 88% 92%, rgba(239,75,108,0.10) 0%, transparent 60%),
        radial-gradient(ellipse 40% 35% at 85% 12%, rgba(45,217,143,0.07) 0%, transparent 60%),
        #06060d;
    overflow: hidden;
}

/* Starfield: three layers of small dots at different sizes/opacities,
   each drifting slowly at a different speed for subtle parallax. */
.auth-wrapper::before,
.auth-wrapper::after {
    content: '';
    position: absolute;
    inset: -10%;
    pointer-events: none;
    background-repeat: repeat;
    z-index: 0;
}
.auth-wrapper::before {
    background-image:
        radial-gradient(1.6px 1.6px at 8% 22%,  rgba(255,255,255,.85) 0, transparent 100%),
        radial-gradient(1.2px 1.2px at 24% 68%, rgba(255,255,255,.55) 0, transparent 100%),
        radial-gradient(2px 2px at 41% 12%,      rgba(255,255,255,.9)  0, transparent 100%),
        radial-gradient(1.3px 1.3px at 58% 78%,  rgba(255,255,255,.5)  0, transparent 100%),
        radial-gradient(1.6px 1.6px at 73% 34%,  rgba(255,255,255,.8)  0, transparent 100%),
        radial-gradient(1.1px 1.1px at 88% 58%,  rgba(255,255,255,.45) 0, transparent 100%),
        radial-gradient(1.8px 1.8px at 95% 15%,  rgba(255,255,255,.75) 0, transparent 100%),
        radial-gradient(1.2px 1.2px at 15% 90%,  rgba(255,255,255,.5)  0, transparent 100%),
        radial-gradient(1.5px 1.5px at 33% 40%,  rgba(255,255,255,.65) 0, transparent 100%),
        radial-gradient(1.1px 1.1px at 67% 6%,   rgba(255,255,255,.45) 0, transparent 100%);
    background-size: 100% 100%;
    animation: starDrift1 90s linear infinite, starTwinkle 4.5s ease-in-out infinite alternate;
}
.auth-wrapper::after {
    background-image:
        radial-gradient(1px 1px at 12% 48%,  rgba(255,255,255,.35) 0, transparent 100%),
        radial-gradient(1px 1px at 29% 8%,   rgba(255,255,255,.3)  0, transparent 100%),
        radial-gradient(1.4px 1.4px at 46% 82%, rgba(255,255,255,.4) 0, transparent 100%),
        radial-gradient(1px 1px at 63% 30%,  rgba(255,255,255,.3)  0, transparent 100%),
        radial-gradient(1.2px 1.2px at 80% 70%, rgba(255,255,255,.35) 0, transparent 100%),
        radial-gradient(1px 1px at 92% 40%,  rgba(255,255,255,.3)  0, transparent 100%),
        radial-gradient(1.1px 1.1px at 5% 75%, rgba(255,255,255,.3) 0, transparent 100%),
        radial-gradient(1px 1px at 54% 55%,  rgba(255,255,255,.25) 0, transparent 100%);
    background-size: 100% 100%;
    animation: starDrift2 140s linear infinite reverse;
    opacity: .8;
}

/* Two faint "shooting star" streaks drifting across the sky. */
.auth-shooting-star {
    position: absolute;
    width: 140px;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.75) 60%, rgba(255,255,255,0) 100%);
    border-radius: 2px;
    z-index: 0;
    pointer-events: none;
    transform: rotate(-18deg);
}
.auth-shooting-star--a { top: 18%;  left: -10%; animation: shootA 9s ease-in  infinite; animation-delay: 1.2s; }
.auth-shooting-star--b { top: 62%;  left: -10%; animation: shootB 13s ease-in infinite; animation-delay: 5s;   opacity: .6; }

@keyframes starDrift1 { from { transform: translate(0,0); } to { transform: translate(-3%,-2%); } }
@keyframes starDrift2 { from { transform: translate(0,0); } to { transform: translate(2%,3%); } }
@keyframes starTwinkle { from { opacity: .75; } to { opacity: 1; } }
@keyframes shootA {
    0%   { transform: translate(0,0) rotate(-18deg);      opacity: 0; }
    5%   { opacity: 1; }
    22%  { transform: translate(60vw, 22vh) rotate(-18deg); opacity: 0; }
    100% { opacity: 0; }
}
@keyframes shootB {
    0%   { transform: translate(0,0) rotate(-14deg);      opacity: 0; }
    5%   { opacity: .8; }
    26%  { transform: translate(70vw, 16vh) rotate(-14deg); opacity: 0; }
    100% { opacity: 0; }
}

.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: var(--shadow);
    animation: cardIn 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.auth-page-footer {
    position: relative;
    z-index: 1;
    margin-top: 22px;
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,.4);
    letter-spacing: .2px;
}
.auth-page-footer .auth-version {
    display: inline-block;
    margin-left: 8px;
    padding: 1px 7px;
    border-radius: 20px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: .4px;
    color: rgba(255,255,255,.55);
}

.auth-card--wide {
    max-width: 480px;
}

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

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 15px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--accent) 0%, #5548c8 100%);
    box-shadow: 0 8px 22px var(--accent-glow);
    position: relative;
    overflow: hidden;
}
.auth-mark::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,.28) 0%, transparent 55%);
}

.auth-logo {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: block;
}

    .auth-logo .accent,
    .auth-logo .brand-accent {
        color: var(--accent);
        font-weight: 700;
    }

.brand-accent {
    color: var(--accent);
    font-weight: 700;
}

.auth-title {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.3px;
    margin-bottom: 7px;
    text-transform: uppercase;
}

.form-input {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

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

    .form-input:focus {
        border-color: var(--border-focus);
        box-shadow: 0 0 0 3px var(--accent-glow);
    }

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

        .form-input.input-error:focus {
            box-shadow: 0 0 0 3px var(--danger-glow);
        }

.password-wrapper {
    position: relative;
}

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

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

    .password-toggle svg {
        width: 16px;
        height: 16px;
    }

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.form-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-label {
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-sm);
    padding: 13px;
    color: #fff;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

    .btn-primary:hover:not(:disabled) {
        opacity: 0.9;
        transform: translateY(-1px);
        box-shadow: 0 8px 24px var(--accent-glow);
    }

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

    .btn-primary:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: rgba(239,75,108,0.08);
    border: 1px solid rgba(239,75,108,0.25);
    color: var(--danger);
}

.alert-success {
    background: rgba(45,217,143,0.08);
    border: 1px solid rgba(45,217,143,0.25);
    color: var(--success);
}

.field-error {
    font-size: 12px;
    color: var(--danger);
    margin-top: 5px;
}

.divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0;
}

.divider-line {
    flex: 1;
    height: 1px;
    background: var(--border);
}

.divider-text {
    font-size: 12px;
    color: var(--text-subtle);
    white-space: nowrap;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
}

.auth-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: opacity var(--transition);
}

    .auth-link:hover {
        opacity: 0.8;
    }

.forgot-link {
    display: block;
    text-align: right;
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
    margin-top: 6px;
    transition: color var(--transition);
}

    .forgot-link:hover {
        color: var(--accent);
    }

.spinner {
    display: inline-block;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    animation: spin 0.7s linear infinite;
}

.spinner-sm {
    width: 14px;
    height: 14px;
}

.spinner-large {
    width: 36px;
    height: 36px;
    border-width: 3px;
    border-top-color: var(--accent);
    border-color: var(--border);
}

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

.verifying {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 14px;
}

.strength-bar {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.strength-segment {
    height: 3px;
    flex: 1;
    border-radius: 2px;
    background: var(--border);
    transition: background 0.3s;
}

    .strength-segment.filled-weak {
        background: var(--danger);
    }

    .strength-segment.filled-fair {
        background: #f59e0b;
    }

    .strength-segment.filled-good {
        background: #3b82f6;
    }

    .strength-segment.filled-strong {
        background: var(--success);
    }

.strength-label {
    font-size: 11px;
    color: var(--text-subtle);
    margin-top: 4px;
    text-align: right;
}

/* ── Input with icon + eye button ── */
.input-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.field-icon {
    position: absolute;
    left: 12px;
    font-size: 15px;
    pointer-events: none;
    z-index: 1;
    line-height: 1;
}

.form-input.has-icon {
    padding-left: 38px;
}

.form-input.has-eye {
    padding-right: 42px;
}

.eye-btn {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-subtle);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: color var(--transition);
    line-height: 1;
}

    .eye-btn:hover {
        color: var(--text-muted);
    }

/* forgot-link placed below the password field */
.forgot-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--accent);
    text-decoration: none;
    transition: opacity var(--transition);
}

    .forgot-link:hover {
        opacity: 0.75;
    }

/* ── Auth tagline ── */
.auth-tagline {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ── Password requirements checklist ── */
.password-requirements {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-bottom: 18px;
    font-size: 13px;
}

.req-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.password-requirements ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0;
    margin: 0;
}

.password-requirements li {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    transition: color 0.2s ease;
}

.req-unmet {
    color: var(--text-subtle);
}

.req-met {
    color: var(--success);
}

/* ── Input icon position fix ── */
.field-icon {
    color: var(--text-subtle);
    transition: color var(--transition);
}

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

/* ── Register floating toast ─────────────────────────────────────── */
.register-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 18px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    max-width: 420px;
    width: calc(100% - 32px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
    animation: toast-in 0.3s cubic-bezier(0.34,1.56,0.64,1) both;
}

.register-toast--error {
    background: #2a1215;
    border: 1px solid #ef4444;
    color: #fca5a5;
}

.toast-icon {
    font-size: 15px;
    flex-shrink: 0;
    color: #ef4444;
    font-weight: 700;
}

.toast-msg {
    flex: 1;
}

.toast-close {
    background: none;
    border: none;
    color: #ef4444;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 0 2px;
    opacity: 0.7;
    transition: opacity 0.15s;
    flex-shrink: 0;
}

    .toast-close:hover {
        opacity: 1;
    }

.toast-fade-out {
    animation: toast-out 0.7s ease forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    to {
        opacity: 0;
        transform: translateX(-50%) translateY(16px);
    }
}
