/* ===================================================
   MARKIRA AUTH — Login & Sign Up Pages
   Matches landing page dark deep-tech aesthetic
   =================================================== */

/* --- Design Tokens (same as landing) --- */
:root {
    --bg-primary: #06080f;
    --bg-secondary: #0a0c14;
    --bg-card: rgba(255, 255, 255, 0.025);
    --bg-card-hover: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(10, 12, 20, 0.75);

    --text-100: #f0f2f5;
    --text-200: #b8bcc6;
    --text-300: #7c8491;

    --accent: #38bdf8;
    --accent-rgb: 56, 189, 248;
    --accent-glow: rgba(56, 189, 248, 0.35);
    --accent-2: #818cf8;
    --accent-2-rgb: 129, 140, 248;
    --accent-green: #34d399;
    --accent-red: #f87171;

    --border: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(255, 255, 255, 0.15);
    --border-accent: rgba(56, 189, 248, 0.35);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-glow: 0 0 60px -12px rgba(var(--accent-rgb), 0.3);
    --shadow-card: 0 24px 64px -16px rgba(0, 0, 0, 0.7);

    --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-med: 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background: var(--bg-primary);
    color: var(--text-100);
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

a { color: inherit; text-decoration: none; }

/* --- Orb Background (mirrors landing) --- */
body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(130px);
    opacity: 0.35;
}
body::before {
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.28), transparent 70%);
    top: -10%;
    left: -8%;
    animation: orb1 20s ease-in-out infinite alternate;
}
body::after {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(var(--accent-2-rgb), 0.22), transparent 70%);
    bottom: -12%;
    right: -6%;
    animation: orb2 25s ease-in-out infinite alternate;
}

@keyframes orb1 {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(70px, 50px) scale(1.12); }
}
@keyframes orb2 {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-55px, -70px) scale(1.08); }
}

/* Grid noise overlay */
body::before {
    background-image:
        radial-gradient(circle, rgba(var(--accent-rgb), 0.28), transparent 70%);
}

/* --- Subtle grid background --- */
.auth-grid-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}

/* --- Navbar --- */
.auth-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: rgba(6, 8, 15, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.auth-nav .logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--text-100);
    text-transform: lowercase;
    text-decoration: none;
}
.auth-nav .logo span {
    color: var(--accent);
}

.auth-nav .nav-back {
    font-size: 0.825rem;
    color: var(--text-300);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color var(--transition-fast);
}
.auth-nav .nav-back:hover { color: var(--accent); }
.auth-nav .nav-back svg { flex-shrink: 0; }

/* --- Main Layout --- */
.auth-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 1.5rem 3rem;
}

/* --- Card --- */
.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2.25rem;
    box-shadow: var(--shadow-card), var(--shadow-glow);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    position: relative;
    overflow: hidden;
    animation: card-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes card-in {
    from { opacity: 0; transform: translateY(24px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Accent glow stripe at top of card */
.auth-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(var(--accent-rgb), 0.7) 30%,
        rgba(var(--accent-2-rgb), 0.7) 70%,
        transparent
    );
}

/* Soft inner glow */
.auth-card::after {
    content: '';
    position: absolute;
    top: -60px; left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 200px;
    background: radial-gradient(ellipse, rgba(var(--accent-rgb), 0.08), transparent 70%);
    pointer-events: none;
}

/* --- Card Header --- */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.15), rgba(var(--accent-2-rgb), 0.15));
    border: 1px solid rgba(var(--accent-rgb), 0.25);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    position: relative;
    z-index: 1;
}
.auth-logo-icon svg {
    color: var(--accent);
}

.auth-header h1 {
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-100);
    margin-bottom: 0.4rem;
    position: relative;
    z-index: 1;
}

.auth-header p {
    font-size: 0.875rem;
    color: var(--text-300);
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

/* --- Flash Messages --- */
.flash-list {
    list-style: none;
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.flash-list li {
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.825rem;
    font-weight: 500;
    border: 1px solid;
}
.flash-list li.error {
    background: rgba(248, 113, 113, 0.08);
    border-color: rgba(248, 113, 113, 0.25);
    color: #fca5a5;
}
.flash-list li.success {
    background: rgba(52, 211, 153, 0.08);
    border-color: rgba(52, 211, 153, 0.25);
    color: #6ee7b7;
}

/* --- Form --- */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    position: relative;
    z-index: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-200);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

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

.input-icon {
    position: absolute;
    left: 0.9rem;
    color: var(--text-300);
    pointer-events: none;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
}

.input-wrapper input {
    width: 100%;
    padding: 0.75rem 0.9rem 0.75rem 2.6rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-100);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.input-wrapper input::placeholder {
    color: var(--text-300);
    font-size: 0.875rem;
}

.input-wrapper input:focus {
    border-color: rgba(var(--accent-rgb), 0.5);
    background: rgba(var(--accent-rgb), 0.04);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}

.input-wrapper input:focus + .input-focus-ring,
.input-wrapper:focus-within .input-icon {
    color: var(--accent);
}

/* Password toggle */
.input-toggle {
    position: absolute;
    right: 0.9rem;
    background: none;
    border: none;
    color: var(--text-300);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}
.input-toggle:hover { color: var(--accent); }

/* --- Password strength (signup) --- */
.password-strength {
    margin-top: 0.35rem;
    display: flex;
    gap: 4px;
}
.strength-bar {
    flex: 1;
    height: 3px;
    border-radius: 99px;
    background: var(--border);
    transition: background var(--transition-med);
}
.strength-bar.active-weak   { background: var(--accent-red); }
.strength-bar.active-medium { background: #fbbf24; }
.strength-bar.active-strong { background: var(--accent-green); }

.strength-label {
    font-size: 0.72rem;
    color: var(--text-300);
    margin-top: 0.25rem;
    min-height: 1rem;
    transition: color var(--transition-fast);
}

/* --- Options row (remember / forgot) --- */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: -0.2rem;
}

.remember-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}
.remember-check input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 1px solid var(--border-hover);
    border-radius: 4px;
    background: rgba(255,255,255,0.04);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}
.remember-check input[type="checkbox"]:checked {
    background: var(--accent);
    border-color: var(--accent);
}
.remember-check input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 4px; height: 7px;
    border: 2px solid #000;
    border-top: none; border-left: none;
    transform: rotate(45deg);
}
.remember-check span {
    font-size: 0.82rem;
    color: var(--text-300);
}

.forgot-link {
    font-size: 0.82rem;
    color: var(--accent);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}
.forgot-link:hover { opacity: 1; }

/* --- Terms (signup) --- */
.terms-row {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-top: -0.2rem;
}
.terms-row input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    min-width: 16px;
    border: 1px solid var(--border-hover);
    border-radius: 4px;
    background: rgba(255,255,255,0.04);
    cursor: pointer;
    position: relative;
    margin-top: 2px;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}
.terms-row input[type="checkbox"]:checked {
    background: var(--accent);
    border-color: var(--accent);
}
.terms-row input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 4px; height: 7px;
    border: 2px solid #000;
    border-top: none; border-left: none;
    transform: rotate(45deg);
}
.terms-row span {
    font-size: 0.8rem;
    color: var(--text-300);
    line-height: 1.5;
}
.terms-row a {
    color: var(--accent);
    opacity: 0.85;
}
.terms-row a:hover { opacity: 1; }

/* --- Submit Button --- */
.btn-auth {
    width: 100%;
    padding: 0.85rem 1.5rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border: none;
    border-radius: var(--radius-md);
    color: #020408;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 24px -6px rgba(var(--accent-rgb), 0.5);
    position: relative;
    overflow: hidden;
}

.btn-auth::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-auth:hover {
    opacity: 0.93;
    transform: translateY(-1px);
    box-shadow: 0 8px 32px -6px rgba(var(--accent-rgb), 0.65);
}
.btn-auth:hover::before { opacity: 1; }
.btn-auth:active { transform: translateY(0); }

/* Spinner inside button */
.btn-auth .spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0,0,0,0.3);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Divider --- */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.25rem 0;
    position: relative;
    z-index: 1;
}
.auth-divider span {
    font-size: 0.75rem;
    color: var(--text-300);
    white-space: nowrap;
}
.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* --- Footer link --- */
.auth-footer-link {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-300);
    position: relative;
    z-index: 1;
    margin-top: 0.25rem;
}
.auth-footer-link a {
    color: var(--accent);
    font-weight: 600;
    transition: opacity var(--transition-fast);
}
.auth-footer-link a:hover { opacity: 0.8; }

/* --- Terminal badge (decorative) --- */
.terminal-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent-green);
    background: rgba(52, 211, 153, 0.07);
    border: 1px solid rgba(52, 211, 153, 0.18);
    border-radius: var(--radius-full);
    padding: 0.3rem 0.75rem;
    margin-bottom: 1.5rem;
    letter-spacing: 0.04em;
}
.terminal-badge::before {
    content: '>';
    color: var(--accent-green);
    opacity: 0.6;
}

/* --- Responsive --- */
@media (max-width: 480px) {
    .auth-card {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-lg);
    }
    .auth-nav { padding: 0.875rem 1.25rem; }
}