/* =====================================================
   Hostel Management Admin Portal - Main Styles
   Responsive Design for Desktop, Tablet, Mobile
   ===================================================== */

:root {
    --primary-color: #ff751f;
    --primary-dark: #e66a1c;
    --secondary-color: #ffbd59;
    --danger-color: #ef4444;
    --warning-color: #ffbd59;
    --info-color: #ff751f;
    --dark-bg: #ff751f;
    --dark-bg-light: #ff8c3d;
    --light-bg: #ffffff;
    --border-color: #ffe4d1;
    --text-primary: #2d2d2d;
    --text-secondary: #666666;
    --success-color: #10b981;
    --sidebar-width: 260px;
    --header-height: 60px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

/* =====================================================
   LOGIN PAGE STYLES
   ===================================================== */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ff751f;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 16px;
}

.input-with-icon input,
.input-with-icon select {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
}

.input-with-icon input:focus,
.input-with-icon select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: var(--border-color);
    cursor: not-allowed;
    transform: none;
}

.btn-link {
    background: transparent;
    color: var(--primary-color);
    padding: 8px;
    font-size: 14px;
}

.btn-link:hover {
    background: var(--light-bg);
}

/* OTP Input Styles */
.otp-sent-info {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 20px;
    text-align: center;
}

.otp-sent-info i {
    color: var(--success-color);
    font-size: 24px;
    margin-bottom: 8px;
}

.otp-sent-info p {
    color: #065f46;
    font-size: 14px;
    margin: 0;
}

.otp-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
}

.otp-input {
    width: 50px;
    height: 55px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition);
}

.otp-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.otp-timer {
    text-align: center;
    margin-bottom: 15px;
}

.otp-timer p {
    color: var(--text-secondary);
    font-size: 13px;
}

.otp-timer span {
    font-weight: 600;
    color: var(--primary-color);
}

/* Alert Messages */
.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
}

.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 8px;
}

.help-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

/* =====================================================
   RESPONSIVE - LOGIN PAGE
   ===================================================== */

@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }

    .login-header h1 {
        font-size: 20px;
    }

    .otp-input {
        width: 42px;
        height: 48px;
        font-size: 20px;
    }

    .otp-inputs {
        gap: 6px;
    }
}

/* =====================================================
   UTILITIES
   ===================================================== */

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-secondary);
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}