/* Optimiser IT Management Tool - Main Styles */

:root {
    --font-display: 'Space Grotesk', 'IBM Plex Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'IBM Plex Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --color-bg: #010409;
    --color-panel: #0d1117;
    --color-border: rgba(148, 163, 184, 0.2);
    --color-text: #e2e8f0;
    --color-muted: #94a3b8;
    --accent: linear-gradient(135deg, #f4a261, #f97316);
}

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

body {
    font-family: var(--font-body);
    background: radial-gradient(circle at top, rgba(124, 93, 255, 0.2), transparent 60%), var(--color-bg);
    min-height: 100vh;
    color: var(--color-text);
    line-height: 1.6;
}

/* Container and Layout */
.container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

.login-card {
    background: var(--color-panel);
    border-radius: 20px;
    box-shadow: 0 35px 60px rgba(3, 7, 18, 0.5);
    width: 100%;
    max-width: 420px;
    padding: 2rem;
    border: 1px solid var(--color-border);
}

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

.logo {
    width: 88px;
    height: 88px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
}

.logo svg {
    width: 40px;
    height: 40px;
    color: white;
}

.title {
    font-size: 1.875rem;
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--color-muted);
    font-size: 0.875rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(148, 163, 184, 0.4);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.2s ease-in-out;
    background-color: rgba(2, 6, 23, 0.5);
    color: var(--color-text);
}

.form-input:focus {
    outline: none;
    border-color: #f4a261;
    box-shadow: 0 0 0 3px rgba(244, 162, 97, 0.2);
}

.form-input.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border: none;
    width: 100%;
}

.btn-primary {
    background: var(--accent);
    color: #0f172a;
}

.btn-primary:hover:not(:disabled) {
    filter: brightness(1.05);
    transform: translateY(-1px);
    box-shadow: 0 10px 25px -5px rgba(244, 162, 97, 0.45);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Alert Styles */
.alert {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    display: none;
}

.alert.show {
    display: block;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fecaca;
}

.alert-success {
    background-color: rgba(74, 222, 128, 0.15);
    border: 1px solid rgba(74, 222, 128, 0.4);
    color: #bbf7d0;
}

.alert-warning {
    background-color: #fffbeb;
    border: 1px solid #fed7aa;
    color: #d97706;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.875rem;
    color: var(--color-muted);
}

/* Responsive Design */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    .login-card {
        padding: 1.5rem;
    }
    
    .title {
        font-size: 1.5rem;
    }
}

/* Security Badge */
.security-badge {
    display: inline-flex;
    align-items: center;
    background-color: rgba(3, 105, 161, 0.15);
    color: #7dd3fc;
    border: 1px solid rgba(125, 211, 252, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

.security-badge svg {
    width: 14px;
    height: 14px;
    margin-right: 0.25rem;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* OTP Verification Styles */
.otp-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.otp-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(244, 162, 97, 0.2), rgba(249, 115, 22, 0.2));
    border: 1px solid rgba(244, 162, 97, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.otp-icon svg {
    width: 26px;
    height: 26px;
    color: #f4a261;
}

.otp-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    font-family: var(--font-display);
    margin-bottom: 0.375rem;
}

.otp-subtitle {
    font-size: 0.8125rem;
    color: var(--color-muted);
    line-height: 1.4;
}

.otp-subtitle strong {
    color: #f4a261;
}

.otp-input {
    text-align: center;
    font-size: 1.75rem !important;
    letter-spacing: 0.5rem;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.otp-input::placeholder {
    font-size: 0.875rem;
    letter-spacing: normal;
}

.otp-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    color: var(--color-muted);
    margin-bottom: 1rem;
}

.otp-timer.expiring {
    color: #ef4444;
}

.btn-secondary {
    background: transparent;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    margin-top: 0.75rem;
    font-size: 0.875rem;
}

.btn-secondary:hover {
    color: var(--color-text);
    border-color: rgba(148, 163, 184, 0.5);
    background: rgba(148, 163, 184, 0.05);
}

.slide-in {
    animation: slideIn 0.35s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHT THEME — Login page
   ═══════════════════════════════════════════════════════════════════════════ */

[data-theme="light"] {
    --color-bg:     #eef2f7;
    --color-panel:  #ffffff;
    --color-border: rgba(100, 116, 139, 0.25);
    --color-text:   #0f172a;
    --color-muted:  #64748b;
}

[data-theme="light"] body {
    background: radial-gradient(circle at top, rgba(109, 79, 212, 0.10), transparent 60%), var(--color-bg);
    color: var(--color-text);
}

[data-theme="light"] .login-card {
    box-shadow: 0 20px 50px rgba(100, 116, 139, 0.18);
}

[data-theme="light"] .form-input {
    background-color: #f8fafc;
    border-color: rgba(100, 116, 139, 0.4);
    color: var(--color-text);
}

[data-theme="light"] .form-input::placeholder {
    color: #94a3b8;
}

[data-theme="light"] .form-input:focus {
    background-color: #ffffff;
    border-color: #f4a261;
    box-shadow: 0 0 0 3px rgba(244, 162, 97, 0.18);
}

[data-theme="light"] .alert-error {
    background-color: rgba(239, 68, 68, 0.10);
    border-color: rgba(239, 68, 68, 0.35);
    color: #b91c1c;
}

[data-theme="light"] .alert-success {
    background-color: rgba(74, 222, 128, 0.12);
    border-color: rgba(74, 222, 128, 0.35);
    color: #15803d;
}

[data-theme="light"] .btn-secondary {
    background: transparent;
    color: var(--color-muted);
    border-color: var(--color-border);
}

[data-theme="light"] .btn-secondary:hover {
    color: var(--color-text);
    border-color: rgba(100, 116, 139, 0.5);
    background: rgba(100, 116, 139, 0.06);
}

[data-theme="light"] .security-badge {
    background-color: rgba(59, 130, 246, 0.10);
    color: #1d4ed8;
    border-color: rgba(59, 130, 246, 0.25);
}

[data-theme="light"] .otp-icon {
    background: linear-gradient(135deg, rgba(244, 162, 97, 0.15), rgba(249, 115, 22, 0.15));
    border-color: rgba(244, 162, 97, 0.35);
}

/* Theme toggle on login page */
.login-theme-toggle {
    position: fixed;
    top: 1.25rem;
    right: 1.5rem;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0.5rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: var(--color-panel);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
    color: var(--color-text);
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.login-theme-toggle:hover {
    border-color: #f4a261;
    transform: scale(1.08);
}

/* ── Light theme login: extra depth ── */
[data-theme="light"] .form-input {
    background-color: #f1f5f9;
    border-color: #cbd5e1;
}
[data-theme="light"] .form-input:focus {
    background-color: #ffffff;
}
[data-theme="light"] .btn-primary {
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.38);
}
[data-theme="light"] .footer {
    border-top-color: #cbd5e1;
    color: #64748b;
}