/* =============================================
   ARANI Platform - Modern Production CSS
   ============================================= */

:root {
    /* Primary Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;

    /* Secondary Colors */
    --secondary: #8b5cf6;
    --accent: #ec4899;

    /* Neutral Colors */
    --dark: #0f172a;
    --dark-alt: #1e293b;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --gray-lighter: #f1f5f9;
    --white: #ffffff;

    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =============================================
   Hero Section (Homepage)
   ============================================= */

.hero {
    text-align: center;
    padding: 80px 20px;
    color: var(--white);
    max-width: 1200px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: #f9fafb;
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
    transform: translateY(-3px);
}

/* =============================================
   Features Section
   ============================================= */

.features {
    background: var(--white);
    padding: 80px 20px;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    margin-top: -50px;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 50px;
    color: var(--dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature {
    padding: 35px;
    border-radius: var(--radius-lg);
    background: var(--gray-lighter);
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
    background: var(--white);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature h3 {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature p {
    color: var(--gray);
    line-height: 1.8;
}

/* =============================================
   Auth Container (Login/Register)
   ============================================= */

.auth-container {
    background: var(--white);
    padding: 50px 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 450px;
    width: 100%;
    animation: slideUp 0.5s ease;
}

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

.auth-header {
    text-align: center;
    margin-bottom: 40px;
}

.auth-header .logo {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.auth-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.auth-header p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* =============================================
   Forms
   ============================================= */

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition-fast);
    font-family: inherit;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder {
    color: var(--gray);
}

.form-footer {
    text-align: right;
    margin-bottom: 10px;
}

.forgot-password-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.forgot-password-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

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

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

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* =============================================
   Messages & Alerts
   ============================================= */

.message {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    display: none;
    font-size: 0.95rem;
    line-height: 1.6;
    animation: slideDown 0.3s ease;
}

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

.message.show {
    display: block;
}

.message.success {
    background: var(--success-light);
    color: #065f46;
    border-left: 4px solid var(--success);
}

.message.error {
    background: var(--error-light);
    color: #991b1b;
    border-left: 4px solid var(--error);
}

.message.warning {
    background: var(--warning-light);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.message.info {
    background: var(--info-light);
    color: #1e40af;
    border-left: 4px solid var(--info);
}

.message strong {
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
}

/* =============================================
   Links
   ============================================= */

.auth-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--gray-light);
}

.auth-footer p {
    color: var(--gray);
    font-size: 0.95rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.auth-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* =============================================
   Dashboard
   ============================================= */

.dashboard-container {
    max-width: 1400px;
    width: 100%;
    padding: 20px;
}

.dashboard-header {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.dashboard-title h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.dashboard-title p {
    color: var(--gray);
}

.dashboard-actions {
    display: flex;
    gap: 15px;
}

.btn-secondary {
    padding: 12px 24px;
    background: var(--gray-lighter);
    color: var(--dark);
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.tabs {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--gray-lighter);
}

.tab-button {
    flex: 1;
    padding: 20px 30px;
    background: transparent;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}

.tab-button:hover {
    color: var(--primary);
    background: var(--gray-lighter);
}

.tab-button.active {
    color: var(--primary);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
}

.tab-content {
    padding: 40px;
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* =============================================
   Loading Spinner
   ============================================= */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* =============================================
   Responsive Design
   ============================================= */

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .auth-container {
        padding: 35px 25px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
    }

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

    .dashboard-header {
        flex-direction: column;
        text-align: center;
    }

    .tab-buttons {
        flex-direction: column;
    }

    .tab-button.active::after {
        left: 0;
        right: auto;
        width: 3px;
        height: 100%;
        bottom: 0;
    }
}

/* =============================================
   Utility Classes
   ============================================= */

.text-center { text-align: center; }
.text-muted { color: var(--gray); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.hidden { display: none !important; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }