/*
 * QuickConverter Production Stylesheet
 * Version: 3.0.0 (Enterprise Stable)
 * Features: Glass UI, Inline SVG Support, Enhanced UX, SaaS Grade
 */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;

    --bg-main: #f8fafc;
    --bg-gradient: radial-gradient(circle at top left, #e0f2fe, transparent 40%),
                   radial-gradient(circle at bottom right, #dbeafe, transparent 40%);

    --text-dark: #0f172a;
    --text-light: #64748b;

    --white: #ffffff;
    --border-color: #e2e8f0;

    --radius: 14px;
    --radius-lg: 20px;

    --shadow-sm: 0 2px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);

    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===============================
   1. Background
================================ */

body.auth-page {
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    margin: 0;
    color: var(--text-dark);
}

.auth-background {
    position: fixed;
    inset: 0;
    z-index: -1;
}

/* ===============================
   2. Page Controls
================================ */

.page-controls {
    position: fixed;
    top: 24px;
    left: 24px;
    right: 24px;
    display: flex;
    justify-content: space-between;
    z-index: 100;
}

.control-btn {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.control-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===============================
   3. Main Container
================================ */

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 40px 20px;
}

/* ===============================
   4. Auth Card
================================ */

.auth-card {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(14px);
    width: 100%;
    max-width: 460px;
    padding: 42px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.4);
}

/* ===============================
   5. Brand
================================ */

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

.brand img {
    height: 54px;
    margin-bottom: 14px;
}

.brand h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 0 6px 0;
}

.brand p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* ===============================
   6. Social Auth
================================ */

.social-auth {
    margin-bottom: 26px;
}

.btn-social {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 13px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-social:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-social img {
    height: 20px;
}

/* Divider */

.divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    font-size: 0.75rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 12px;
}

/* ===============================
   7. Tabs
================================ */

.tabs {
    display: flex;
    background: #f1f5f9;
    padding: 6px;
    border-radius: 12px;
    margin-bottom: 26px;
}

.tabs button {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-light);
    border-radius: 10px;
    transition: var(--transition);
}

.tabs button.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ===============================
   8. Forms
================================ */

.form {
    display: none;
    flex-direction: column;
    gap: 22px;
}

.form.active {
    display: flex;
}

/* Input Groups */

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 600;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper svg {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 18px;
    color: var(--text-light);
}

.input-wrapper input {
    width: 100%;
    padding: 12px 14px 12px 44px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

/* Toggle Password */

.toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
}

/* ===============================
   9. Buttons
================================ */

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--white);
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===============================
   10. Footer
================================ */

.auth-footer {
    text-align: center;
    padding: 40px 20px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    margin: 0 8px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
}

/* ===============================
   11. Animations
================================ */

.fade-in {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===============================
   12. Responsive
================================ */

@media (max-width: 480px) {

    .auth-card {
        padding: 30px 22px;
    }

    .page-controls {
        top: 14px;
        left: 14px;
        right: 14px;
    }
}