/* ──────────────────────────────────────────────
   Login Page — JAI Transcribe
   ────────────────────────────────────────────── */

:root {
    --login-bg: #0a0f1e;
    --login-card-bg: rgba(255, 255, 255, 0.06);
    --login-card-border: rgba(255, 255, 255, 0.1);
    --login-text: #e2e8f0;
    --login-text-muted: #94a3b8;
    --login-heading: #f1f5f9;
    --login-brand: var(--brand-grad-light);
    --login-brand-hover: var(--brand-grad-mid);
    --login-input-bg: rgba(255, 255, 255, 0.07);
    --login-input-border: rgba(255, 255, 255, 0.12);
    --login-input-focus: var(--brand-grad-light);
    --login-error: #ef4444;
    --login-success: #10b981;

    /* Customisable brand gradient (overridden by JS when brandColor is set) */
    --brand-grad-light: #2d548c;
    --brand-grad-mid:   #1a3366;
    --brand-grad-dark:  #0f1f40;
    --brand-gradient: linear-gradient(to bottom, var(--brand-grad-light) 0%, var(--brand-grad-mid) 50%, var(--brand-grad-dark) 100%);
    --brand-500-rgb: 59,130,246; --brand-600-rgb: 37,99,235;
}

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

body.login-page {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--login-bg);
    color: var(--login-text);
    position: relative;
    overflow: hidden;
}

/* ---- Background ---- */
.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
}

.login-bg-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.login-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 15, 30, 0.85), rgba(15, 23, 42, 0.9));
}

.login-bg-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, var(--brand-grad-light) 0%, var(--brand-grad-mid) 35%, var(--brand-grad-dark) 70%, #0f172a 100%);
}

/* Animated gradient orbs */
.login-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: orbFloat 20s ease-in-out infinite;
}
.login-bg-orb:nth-child(1) {
    width: 600px; height: 600px;
    background: var(--brand-grad-mid);
    top: -200px; right: -100px;
    animation-delay: 0s;
}
.login-bg-orb:nth-child(2) {
    width: 500px; height: 500px;
    background: var(--brand-grad-dark);
    bottom: -150px; left: -100px;
    animation-delay: -7s;
}
.login-bg-orb:nth-child(3) {
    width: 400px; height: 400px;
    background: #06b6d4;
    top: 40%; left: 50%;
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-40px, -30px) scale(1.05); }
    66% { transform: translate(30px, 20px) scale(0.95); }
}

/* ---- Card ---- */
.login-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: transparent;
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: none;
    border-radius: 24px;
    padding: 0;
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.4);
    animation: cardEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.login-card-header {
    background: var(--brand-gradient);
    padding: 40px 36px 32px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.login-card-body {
    background: rgba(255, 255, 255, 0.06);
    padding: 28px 36px 36px;
    border: 1px solid var(--login-card-border);
    border-top: none;
    border-radius: 0 0 24px 24px;
}

.login-card-header .login-title {
    margin-bottom: 0;
}
.login-card-header .login-title h1 {
    font-size: 22px;
}
.login-card-header .login-title p {
    color: rgba(255,255,255,0.5);
}

@keyframes cardEnter {
    from { opacity: 0; transform: translateY(24px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---- Logo & Title ---- */
.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
}
.login-logo img {
    height: 72px;
    width: auto;
    filter: brightness(0) invert(1);
}
.login-tagline {
    margin: 16px 0 0;
    font-size: 10px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
}
.login-title {
    text-align: center;
    margin-bottom: 32px;
}
.login-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--login-heading);
    margin-bottom: 6px;
}
.login-title p {
    font-size: 14px;
    color: var(--login-text-muted);
}

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

.login-field { display: flex; flex-direction: column; gap: 6px; }

.login-field label {
    font-size: 12px;
    font-weight: 600;
    color: rgba(255,255,255,0.6);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.login-field input {
    width: 100%;
    padding: 12px 16px;
    background: var(--login-input-bg);
    border: 1px solid var(--login-input-border);
    border-radius: 12px;
    color: var(--login-heading);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s ease;
    outline: none;
}
.login-field input::placeholder {
    color: rgba(148, 163, 184, 0.5);
}
.login-field input:focus {
    border-color: var(--login-input-focus);
    box-shadow: 0 0 0 3px rgba(var(--brand-500-rgb, 59,130,246), 0.15);
    background: rgba(255, 255, 255, 0.09);
}

.login-field-password {
    position: relative;
}
.login-field-password input {
    padding-right: 44px;
}
.login-password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--login-text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    transition: color 0.2s;
}
.login-password-toggle:hover {
    color: var(--login-text);
}

/* Honeypot — invisible to humans */
.login-hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* ---- Button (header pill style with sweep light) ---- */
.login-btn {
    width: 100%;
    padding: 12px 24px;
    background: transparent;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 6px;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.02em;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* Sweep light effect — runs every 4 seconds */
.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.08) 25%,
        rgba(255, 255, 255, 0.25) 50%,
        rgba(255, 255, 255, 0.08) 75%,
        transparent 100%
    );
    animation: btnSweepLight 4s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

@keyframes btnSweepLight {
    0%   { left: -100%; opacity: 0; }
    10%  { opacity: 1; }
    50%  { left: 160%; opacity: 1; }
    60%  { opacity: 0; }
    100% { left: 160%; opacity: 0; }
}

/* Soft glow ring on hover */
.login-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.45);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.08), inset 0 0 20px rgba(255, 255, 255, 0.03);
    transform: translateY(-1px);
}
.login-btn:active {
    transform: translateY(0);
    background: rgba(255, 255, 255, 0.14);
}
.login-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.login-btn:disabled::before {
    animation: none;
}

.login-btn .spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.25);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
.login-btn.loading .spinner { display: inline-block; }
.login-btn.loading .btn-text { opacity: 0.7; }
.login-btn.loading::before { animation: none; opacity: 0; }

.login-btn .btn-text {
    position: relative;
    z-index: 2;
}

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

/* ---- Animation Canvas Layer ---- */
#loginAnimationCanvas {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.45;
}

/* ---- Links ---- */
.login-links {
    display: flex;
    justify-content: center;
    margin-top: 8px;
}
.login-links a {
    color: var(--login-brand);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s;
}
.login-links a:hover {
    color: var(--brand-grad-light);
}

/* ---- Error / Success ---- */
.login-alert {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 8px;
    animation: alertEnter 0.3s ease;
}
.login-alert.show { display: flex; }
.login-alert.error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}
.login-alert.success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}
@keyframes alertEnter {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Reset Password Form ---- */
.login-reset-form {
    display: none;
    flex-direction: column;
    gap: 18px;
}
.login-reset-form.active { display: flex; }
.login-form.hidden { display: none; }

.login-back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--login-text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
    cursor: pointer;
}
.login-back-link:hover {
    color: var(--login-text);
}

/* ---- New Password (token reset) ---- */
.login-new-pw-form {
    display: none;
    flex-direction: column;
    gap: 18px;
}
.login-new-pw-form.active { display: flex; }

/* ---- Footer ---- */
.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--login-text-muted);
    font-size: 12px;
    opacity: 0.6;
}

/* ---- Login Transition Overlay ---- */
.login-transition {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: linear-gradient(to bottom, var(--brand-grad-light) 0%, var(--brand-grad-mid) 35%, var(--brand-grad-dark) 70%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease;
}
.login-transition.active {
    opacity: 1;
    visibility: visible;
}
[data-theme="dark"] .login-transition {
    background: linear-gradient(to bottom, #1a3a7a 0%, #0f172a 40%, #070b14 100%);
}
.login-transition.active .login-transition-box {
    animation: ltBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
.login-transition.exit .login-transition-box {
    animation: ltBounceOut 0.5s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}
.login-transition.exit {
    opacity: 0;
    transition: opacity 0.5s ease 0.2s;
}
@keyframes ltBounceIn {
    0% { transform: scale(0.2) rotate(-8deg); opacity: 0; }
    50% { transform: scale(1.1) rotate(2deg); opacity: 1; }
    70% { transform: scale(0.95) rotate(-1deg); }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}
@keyframes ltBounceOut {
    0% { transform: scale(1); opacity: 1; }
    30% { transform: scale(1.1); }
    100% { transform: scale(0.15) rotate(12deg); opacity: 0; }
}
.login-transition-box {
    text-align: center;
    transform: scale(0.2);
    opacity: 0;
}
.login-transition-box {
    position: relative;
}
.login-transition-box canvas {
    display: block;
    margin: 0 auto 20px;
    border-radius: 50%;
    width: 420px;
    height: 420px;
}
.login-transition-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px; height: 120px;
    margin-top: -20px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    animation: ltIconFloat 3s ease-in-out infinite;
    border: 1px solid rgba(255,255,255,0.12);
}
.login-transition-icon svg {
    width: 56px;
    height: 56px;
}
@keyframes ltIconFloat {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-10px); }
}
.login-transition-title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 10px;
    letter-spacing: -0.3px;
}
.login-transition-subtitle {
    font-size: 16px;
    color: rgba(255,255,255,0.55);
    margin: 0;
    min-height: 24px;
    transition: opacity 0.3s ease;
}
@media (max-width: 480px) {
    .login-transition-box canvas {
        width: 300px;
        height: 300px;
    }
    .login-transition-icon {
        width: 90px; height: 90px;
    }
    .login-transition-icon svg {
        width: 44px; height: 44px;
    }
    .login-transition-title { font-size: 22px; }
    .login-transition-subtitle { font-size: 14px; }
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
    .login-card {
        border-radius: 20px;
    }
    .login-card-header {
        padding: 24px 24px 20px;
    }
    .login-card-body {
        padding: 20px 24px 28px;
    }
    .login-container {
        padding: 16px;
    }
}