/**
 * Common Shared Styles
 * Consolidated common elements used across multiple pages
 */

/* ========================================
   Dark Gradient Background
   ======================================== */
.home-body,
.settings-body,
.change-password-body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--white);
    position: relative;
    overflow-x: hidden;
}

/* ========================================
   Clean Login Background (No Waves)
   ======================================== */
.login-body {
    background: linear-gradient(135deg, #1a1f2e 0%, #2d3748 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* ========================================
   Common Containers
   ======================================== */
.form-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    width: 100%;
}

.login-box {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-lg);
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
                0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========================================
   Form Elements
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--gray-300);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background-color: var(--white);
    color: var(--gray-900);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(255, 115, 21, 0.1);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: var(--font-size-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-600);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 115, 21, 0.3);
}

.btn-secondary {
    background: var(--gray-600);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--gray-700);
}

.btn-danger {
    background: var(--red-600);
    color: var(--white);
}

.btn-danger:hover {
    background: var(--red-700);
}

.btn-small {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

/* ========================================
   Alert Messages
   ======================================== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    border-left-color: var(--green-500);
    color: var(--green-700);
}

.alert-warning {
    background-color: rgba(251, 191, 36, 0.1);
    border-left-color: var(--yellow-500);
    color: var(--yellow-800);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-left-color: var(--red-500);
    color: var(--red-700);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-left-color: var(--blue-500);
    color: var(--blue-700);
}

/* ========================================
   Tool Header (Shared across tools)
   ======================================== */
.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.tool-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.tool-subtitle {
    color: var(--gray-300);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Version Info (Shared)
   ======================================== */
.version-info {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.06);
    padding: 6px 16px;
    border-radius: 6px;
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    z-index: 50;
}

.version-info span {
    color: rgba(255, 255, 255, 0.5);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* ========================================
   Loading States
   ======================================== */
.loading {
    opacity: 0.6;
    pointer-events: none;
    cursor: not-allowed;
}

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

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .form-wrapper {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .login-box {
        padding: var(--spacing-xl);
    }

    .tool-header h1 {
        font-size: 1.75rem;
    }

    .version-info {
        bottom: 10px;
        padding: 4px 12px;
    }

    .version-info span {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .form-wrapper {
        padding: var(--spacing-md);
    }

    .login-box {
        padding: var(--spacing-lg);
        border-radius: var(--radius-md);
    }

    .tool-header h1 {
        font-size: 1.5rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}