/* ===================================
   Dari Host - Complete CSS Stylesheet
   Dark Theme with Purple Accents
   ==================================== */

/* ===== ROOT VARIABLES ===== */
:root {
    /* Primary Colors */
    --primary-color: #7c3aed;        /* Purple */
    --primary-dark: #6d28d9;         /* Dark Purple */
    --primary-light: #a78bfa;        /* Light Purple */
    
    /* Secondary Colors */
    --secondary-color: #0066ff;      /* Blue */
    --secondary-dark: #0052cc;       /* Dark Blue */
    
    /* Accent Colors */
    --accent-green: #10b981;         /* Green */
    --accent-red: #ef4444;           /* Red */
    --accent-yellow: #f59e0b;        /* Yellow */
    --accent-pink: #ec4899;          /* Pink */
    
    /* Background Colors */
    --bg-dark: #0f172a;              /* Very Dark Blue */
    --bg-darker: #020617;            /* Almost Black */
    --bg-card: #1e293b;              /* Dark Slate */
    --bg-input: #334155;             /* Slate */
    
    /* Text Colors */
    --text-primary: #ffffff;         /* White */
    --text-secondary: #cbd5e1;       /* Light Gray */
    --text-tertiary: #94a3b8;        /* Medium Gray */
    
    /* Border Colors */
    --border-color: #334155;         /* Slate */
    --border-light: #475569;         /* Light Slate */
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
    --gradient-secondary: linear-gradient(135deg, #0066ff 0%, #0099ff 100%);
    --gradient-dark: linear-gradient(135deg, #020617 0%, #0f172a 100%);
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--gradient-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.5rem;
    color: var(--primary-light);
}

h4 {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ===== NAVBAR ===== */
.navbar {
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--primary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.nav-brand h1 {
    font-size: 1.8rem;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-auth {
    display: flex;
    gap: 10px;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 5px 10px;
    border-radius: 5px;
}

.nav-menu li {
    list-style: none;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(0, 102, 255, 0.1);
}

/* ===== CONTAINERS & SECTIONS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

section {
    padding: 4rem 2rem;
    margin: 2rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-tertiary);
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.card-body {
    margin-bottom: 1.5rem;
}

.card-footer {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* ===== BUTTONS ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

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

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

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: var(--accent-green);
    color: white;
}

.btn-success:hover {
    background: #059669;
}

.btn-warning {
    background: var(--accent-yellow);
    color: #000;
}

.btn-warning:hover {
    background: #d97706;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===== NAVIGATION BUTTONS ===== */
.btn-login,
.btn-signup {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-login {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary-color);
}

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

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

.btn-signup:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(124, 58, 237, 0.4);
}

/* ===== PLAN BUTTONS ===== */
.btn-plan,
.btn-plan-primary {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-light);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 20px;
}

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

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

.btn-plan-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 10px 25px rgba(124, 58, 237, 0.4);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
    background: rgba(124, 58, 237, 0.05);
}

input::placeholder {
    color: var(--text-tertiary);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== TABLES ===== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.table thead {
    background: linear-gradient(90deg, rgba(124, 58, 237, 0.1) 0%, rgba(0, 102, 255, 0.1) 100%);
    border-bottom: 2px solid var(--primary-color);
}

.table th {
    padding: 1rem;
    text-align: right;
    color: var(--primary-light);
    font-weight: 700;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.table tbody tr:hover {
    background: rgba(124, 58, 237, 0.05);
}

/* ===== BADGES & TAGS ===== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(124, 58, 237, 0.2);
    color: var(--primary-light);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-yellow);
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

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

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
}

.alert-info {
    background: rgba(0, 102, 255, 0.1);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* ===== GRID LAYOUTS ===== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ===== FLEXBOX UTILITIES ===== */
.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* ===== SPACING UTILITIES ===== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* ===== TEXT UTILITIES ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-success { color: var(--accent-green); }
.text-danger { color: var(--accent-red); }
.text-warning { color: var(--accent-yellow); }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.5rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-normal { font-weight: 400; }

/* ===== PRICING CARDS ===== */
.plan-card {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 102, 255, 0.2);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(10px);
}

.plan-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.2);
}

.plan-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
    transform: scale(1.05);
}

.pricing-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.2);
    transform: scale(1.05);
}

.pricing-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-light);
}

.price {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 20px;
}

.price span {
    font-size: 0.6em;
    color: #999;
}

.price-currency {
    font-size: 1.5rem;
}

.price-period {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.features {
    list-style: none;
    margin-bottom: 25px;
}

.features li {
    color: #ccc;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.features li:last-child {
    border-bottom: none;
}

.features-list {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.features-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.features-list li:before {
    content: "✓";
    color: var(--accent-green);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ===== MODALS & DIALOGS ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(5, 8, 18, 0.95) 100%);
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    padding: 40px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 102, 255, 0.3);
    backdrop-filter: blur(10px);
}

.modal-content h2 {
    color: #fff;
    margin-bottom: 25px;
    text-align: center;
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal-content input {
    padding: 12px 15px;
    border: 2px solid rgba(0, 102, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.modal-content input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(0, 102, 255, 0.1);
}

.modal-content input::placeholder {
    color: #999;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.close {
    color: #999;
    float: left;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    color: var(--accent-red);
}

/* ===== LOADING & SPINNERS ===== */
.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
    padding: 100px 20px;
    margin-top: 20px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    color: #ccc;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.robot {
    width: 300px;
    height: 300px;
    filter: drop-shadow(0 10px 30px rgba(0, 102, 255, 0.3));
    animation: float 3s ease-in-out infinite;
}

.robot-blue {
    filter: drop-shadow(0 10px 30px rgba(0, 102, 255, 0.3));
}

.robot-purple {
    filter: drop-shadow(0 10px 30px rgba(147, 51, 234, 0.3));
}

.robot-green {
    filter: drop-shadow(0 10px 30px rgba(16, 185, 129, 0.3));
}

.robot-red {
    filter: drop-shadow(0 10px 30px rgba(255, 107, 107, 0.3));
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}



/* ===== FEATURE BOXES ===== */
.feature-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-box h3 {
    margin-bottom: 1rem;
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 2rem;
    gap: 1rem;
}

.tab-button {
    background: none;
    border: none;
    color: var(--text-tertiary);
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--darker);
    border-top: 2px solid var(--primary-color);
    padding: 30px 20px;
    text-align: center;
    color: #999;
}

.footer p {
    margin: 5px 0;
}

footer {
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
    border-top: 2px solid var(--primary-color);
    padding: 3rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--primary-light);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-tertiary);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
}

/* ===== SECTION STYLES ===== */
.pricing {
    padding: 80px 20px;
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.05) 0%, rgba(0, 102, 255, 0.05) 100%);
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 50px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.about {
    padding: 80px 20px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(0, 102, 255, 0.05) 100%);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about h2 {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--accent-green) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about p {
    color: #ccc;
    font-size: 1.1rem;
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.why-us {
    padding: 80px 20px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.05) 0%, rgba(147, 51, 234, 0.05) 100%);
}

.why-us h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 50px;
    background: linear-gradient(135deg, #FF6B6B 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 107, 107, 0.2);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #FF6B6B;
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.2);
}

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

.feature-card h3 {
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.feature-card p {
    color: #ccc;
}

.what-we-offer {
    padding: 80px 20px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.what-we-offer h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 50px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.offer-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(0, 102, 255, 0.3);
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.offer-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 35px rgba(0, 102, 255, 0.2);
    background: rgba(0, 102, 255, 0.1);
}

.offer-card h3 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.offer-card p {
    color: #ccc;
    font-size: 0.95rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 4rem 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    section {
        padding: 2rem 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-brand h1 {
        font-size: 1.3rem;
    }
    
    .nav-menu {
        gap: 0.5rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .price {
        font-size: 2rem;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1rem; }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease-out;
}

.animate-slideInLeft {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-card);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* ===== UTILITY CLASSES ===== */
.hidden { display: none !important; }
.visible { display: block !important; }
.invisible { visibility: hidden; }

.rounded { border-radius: 8px; }
.rounded-full { border-radius: 9999px; }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }

.transition { transition: all 0.3s ease; }
.transition-fast { transition: all 0.15s ease; }
.transition-slow { transition: all 0.6s ease; }

/* ===== SPECIFIC COMPONENT STYLES ===== */

/* Admin Dashboard */
.dashboard-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.stat-label {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* File Manager */
.file-list {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.file-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.file-item:hover {
    background: rgba(124, 58, 237, 0.05);
}

.file-name {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-icon {
    font-size: 1.5rem;
}

/* Settings Page */
.settings-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.settings-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
}

.settings-tab {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.settings-tab:hover {
    color: var(--primary-light);
}

.settings-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* API Key Display */
.api-key-display {
    background: var(--bg-input);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    border: 1px solid var(--border-color);
}

.copy-btn {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.85rem;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--primary-dark);
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-active {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.status-inactive {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

.status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-yellow);
}

/* ===== PRINT STYLES ===== */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .navbar,
    footer,
    .btn {
        display: none;
    }
}