/**
 * Bharatank - Main Styles
 * Base styles, layout, and responsive design
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

strong {
    font-weight: var(--font-weight-semibold);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 100;
    transition: transform var(--transition-normal);
    overflow-y: auto;
    overflow-x: hidden;
}

.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-normal);
}

/* Sidebar Overlay - Hidden on desktop, shown on mobile */
.sidebar-overlay {
    display: none;
}

.app-header {
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.app-content {
    flex: 1;
    padding: var(--spacing-xl);
}

/* Public Header */
.public-header {
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

.public-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo img {
    height: 40px;
}

.header-logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation Pills */
.nav-pills {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-pill {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    background: transparent;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.nav-pill:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-pill.active {
    color: var(--text-primary);
}

.nav-pill i {
    font-size: var(--font-size-sm);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 214, 50, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.search-box input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-left: 50px;
    font-size: var(--font-size-lg);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box .search-icon {
    position: absolute;
    left: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-dropdown {
    /* Push content down instead of overlay */
    position: relative;
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.15);
    margin-top: 8px;
    /* Smooth animation - starts collapsed */
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.2s ease, margin 0.3s ease;
}

.search-dropdown.active {
    max-height: 350px;
    overflow-y: auto;
    opacity: 1;
}

/* Scrollbar styling */
.search-dropdown::-webkit-scrollbar {
    width: 6px;
}

.search-dropdown::-webkit-scrollbar-track {
    background: transparent;
}

.search-dropdown::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.search-item {
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
}

.search-item:last-child {
    border-bottom: none;
}

.search-item:hover {
    background: var(--bg-hover);
}

.search-item-logo {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: var(--radius-md);
    object-fit: cover;
    background: var(--bg-tertiary);
}

.search-item-info h4 {
    font-size: var(--font-size-base);
    margin-bottom: 2px;
}

.search-item-info span {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.trust-badge-number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--accent-primary);
}

.trust-badge-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Section Styles */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* CTA Card */
.cta-card {
    padding: var(--spacing-2xl);
}

.cta-description {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

@media (max-width: 576px) {
    .cta-card {
        padding: var(--spacing-lg);
    }

    .cta-description {
        margin-bottom: var(--spacing-md);
    }

    .cta-card .btn {
        width: 100%;
    }
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* Flex Utilities */
.flex {
    display: flex;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

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

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.gap-xl {
    gap: var(--spacing-xl);
}

/* Spacing Utilities */
.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.p-md {
    padding: var(--spacing-md);
}

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

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

/* Text Utilities */
.text-center {
    text-align: center;
}

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

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

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

.text-primary {
    color: var(--text-primary);
}

.text-success {
    color: var(--accent-primary);
}

.text-danger {
    color: var(--accent-danger);
}

.text-warning {
    color: var(--accent-warning);
}

.text-info {
    color: var(--accent-info);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-xl {
    font-size: var(--font-size-xl);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

/* Width Utilities */
.w-full {
    width: 100%;
}

.w-auto {
    width: auto;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
}

.footer-brand p {
    margin-top: var(--spacing-md);
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-6 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .app-sidebar {
        transform: translateX(-100%);
        z-index: 101;
    }

    .app-sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        z-index: 100;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .app-main {
        margin-left: 0;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-pills {
        display: none;
    }

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

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .trust-badges {
        gap: var(--spacing-lg);
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .app-content {
        padding: var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* Overlay */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

    to {
        transform: rotate(360deg);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease;
}

.animate-slide-up {
    animation: slideUp var(--transition-normal) ease;
}

.animate-slide-down {
    animation: slideDown var(--transition-normal) ease;
}

.animate-scale-in {
    animation: scaleIn var(--transition-normal) ease;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ============================================
   MOBILE MENU
   ============================================ */

.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    max-width: 85vw;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    z-index: 999;
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-menu-close:hover {
    background: var(--bg-secondary);
}

.mobile-menu-nav {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mobile-menu-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.mobile-menu-link.active {
    color: var(--accent-primary);
}

.mobile-menu-link i {
    width: 20px;
    text-align: center;
}

.mobile-menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-md) 0;
}

.mobile-menu-btn {
    display: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {

    .nav-pills,
    .header-actions {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: var(--font-size-xl);
        cursor: pointer;
        border-radius: var(--radius-md);
        transition: background var(--transition-fast);
    }

    .mobile-menu-btn:hover {
        background: var(--bg-secondary);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

    .section {
        padding: var(--spacing-xl) 0;
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    h2 {
        font-size: var(--font-size-xl);
    }

    .public-footer .container {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-xl);
    }

    .search-box {
        flex-direction: column;
    }

    .search-box button {
        width: 100%;
    }

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

    /* Fix button text wrapping on mobile */
    .btn {
        white-space: normal;
        text-align: center;
    }

    /* Better container padding on very small screens */
    .container {
        padding: 0 12px;
    }

    /* Fix hero section */
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero-content {
        padding: 0 8px;
    }

    /* Fix trust badges */
    .trust-badges {
        gap: var(--spacing-md);
    }

    .trust-badge-number {
        font-size: var(--font-size-xl);
    }

    .trust-badge-label {
        font-size: var(--font-size-xs);
    }

    /* Smaller card padding on mobile */
    .card {
        padding: var(--spacing-md);
    }

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

    .feature-card .feature-icon {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-md);
    }

    /* Fix section spacing */
    .section {
        padding: var(--spacing-lg) 0;
    }

    .section-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-md);
    }

    /* Fix CTA card */
    .card[style*="padding: var(--spacing-2xl)"] {
        padding: var(--spacing-lg) !important;
    }

    /* Fix institution card */
    .institution-card {
        padding: var(--spacing-md);
    }

    .institution-card .institution-logo {
        width: 60px;
        height: 60px;
    }

    /* Fix flex gaps */
    .gap-lg {
        gap: var(--spacing-md);
    }

    .gap-xl {
        gap: var(--spacing-lg);
    }

    /* Fix tables */
    .table th,
    .table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    /* Fix app content padding */
    .app-content {
        padding: var(--spacing-sm);
    }

    /* Fix stat cards */
    .stat-card .stat-value {
        font-size: var(--font-size-2xl);
    }

    .stat-card .stat-icon {
        font-size: 32px;
    }

    /* Fullwidth buttons in CTA */
    .text-center .btn {
        width: 100%;
        max-width: 300px;
    }

    /* Fix footer */
    .footer {
        padding: var(--spacing-lg) 0;
    }

    .footer-bottom {
        padding-top: var(--spacing-md);
        margin-top: var(--spacing-md);
    }

    /* Fix alert padding */
    .alert {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    /* Fix header padding */
    .app-header {
        padding: 0 var(--spacing-sm);
    }

    /* Fix search box margins */
    .search-box {
        margin-bottom: var(--spacing-lg);
    }

    .search-box input {
        font-size: var(--font-size-base);
        padding: var(--spacing-md);
        padding-left: 40px;
    }

    .search-box .search-icon {
        left: var(--spacing-md);
    }
}