/* ===== ROOT VARIABLES ===== */
:root {
    /* Light mode colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #6c757d;
    --border-color: #e0e0e0;
    --shadow: rgba(0, 0, 0, 0.1);

    /* Brand colors */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-danger: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
    --gradient-warning: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    --primary: #667eea;
    --success: #11998e;
    --danger: #eb3349;
    --warning: #f5576c;
    --info: #4facfe;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

.dark-mode {
    --bg-primary: #0f0f1e;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --border-color: #2d2d44;
    --shadow: rgba(0, 0, 0, 0.5);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.8);
    }
}

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

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.fade-in-scale {
    animation: fadeInScale 0.5s ease forwards;
}

.slide-in-right {
    animation: slideInRight 0.5s ease forwards;
}

.slide-in-left {
    animation: slideInLeft 0.5s ease forwards;
}

/* ===== NAVIGATION ===== */
.navbar {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
}

.gradient-icon {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s infinite;
}

.brand-name {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--gradient-primary);
    color: white;
}

.theme-toggle {
    background: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    transform: rotate(20deg) scale(1.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
    padding: var(--spacing-xl) 0;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -200px;
    right: -200px;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -150px;
    left: -150px;
    animation: float 8s ease-in-out infinite;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 1;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    animation: fadeIn 1s ease;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    animation: fadeIn 1s ease 0.3s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    animation: fadeIn 1s ease 0.6s backwards;
}

/* ===== BUTTONS ===== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn span {
    position: relative;
    z-index: 1;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

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

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

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5);
    animation: glow 2s infinite;
}

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

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

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

/* ===== CARDS ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px var(--shadow);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.card h3, .card h4 {
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.4;
}

.card p {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.card-body {
    padding: var(--spacing-md) 0;
}

/* ===== PACKAGE CARDS ===== */
.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.package-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px var(--shadow);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.package-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.package-card:hover::before {
    transform: scaleX(1);
}

.package-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 50px var(--shadow);
    border-color: var(--primary);
}

.package-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(102, 126, 234, 0.1) 100%);
}

.package-network {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.package-size {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: var(--spacing-sm) 0;
}

.package-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-sm) 0;
}

.package-price small {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ===== STATUS BADGES ===== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.status-approved {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.status-processing {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
    animation: pulse 2s infinite;
}

.status-delivered {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    animation: glow 2s;
}

.status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    animation: shake 0.5s;
}

.status-rejected {
    background: rgba(156, 163, 175, 0.2);
    color: #9ca3af;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--bg-secondary);
}

.file-upload:hover {
    border-color: var(--primary);
    background: rgba(102, 126, 234, 0.05);
    transform: scale(1.02);
}

.file-upload.dragover {
    border-color: var(--primary);
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.05);
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.file-preview {
    margin-top: var(--spacing-md);
    text-align: center;
}

.file-preview img {
    max-width: 300px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px var(--shadow);
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeInScale 0.3s ease;
    box-shadow: 0 20px 60px var(--shadow);
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.modal-close:hover {
    color: var(--danger);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* ===== TABLE ===== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
}

.table thead {
    background: var(--gradient-primary);
    color: white;
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
    transform: scale(1.01);
}

/* ===== LOADING OVERLAY ===== */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active {
    display: flex;
}

.loader {
    text-align: center;
    color: white;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

/* ===== TOAST ===== */
.toast {
    position: fixed;
    bottom: -100px;
    right: var(--spacing-lg);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px var(--shadow);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
    z-index: 10000;
    max-width: 400px;
}

.toast.show {
    bottom: var(--spacing-lg);
    animation: slideInRight 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

/* ===== CONFETTI (for DELIVERED status) ===== */
@keyframes confetti-fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    top: -10px;
    z-index: 9999;
    animation: confetti-fall 3s linear forwards;
    pointer-events: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-brand {
        font-size: 1rem;
    }

    .brand-name {
        font-size: 0.9rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 20px var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-content h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero-content p {
        font-size: 1rem;
    }

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

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

    .table-container {
        font-size: 0.875rem;
    }

    .toast {
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: none;
    }

    .card h3 {
        font-size: 1.25rem;
    }

    .card p {
        font-size: 0.95rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.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: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }