/* 
============================================
BookKHSRP.co.in - Main Stylesheet
Version: 1.0.0
Author: BookKHSRP Team
============================================
*/

/* ===========================================
   1. ROOT VARIABLES & RESET
=========================================== */
:root {
    /* Primary Colors */
    --primary-color: #243875;
    --primary-dark: #1c2b5a;
    --primary-light: #2c5282;
    --primary-gradient: linear-gradient(135deg, #243875 0%, #2c5282 100%);
    
    /* Secondary Colors */
    --secondary-color: #1e90ff;
    --secondary-dark: #0077cc;
    --secondary-light: #4dabf7;
    
    /* Accent Colors */
    --accent-success: #28a745;
    --accent-warning: #ffc107;
    --accent-danger: #dc3545;
    --accent-info: #17a2b8;
    
    /* Neutral Colors */
    --light-bg: #f8f9fa;
    --light-gray: #e9ecef;
    --medium-gray: #ced4da;
    --dark-gray: #6c757d;
    --text-color: #333333;
    --text-light: #6c757d;
    --white: #ffffff;
    --black: #000000;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.2);
    
    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    --radius-circle: 50%;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-heading: 2rem;
    --font-size-display: 3rem;
    
    /* Z-index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    overflow-x: hidden;
}

/* ===========================================
   2. TYPOGRAPHY
=========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

h1 { font-size: var(--font-size-display); }
h2 { font-size: var(--font-size-heading); }
h3 { font-size: var(--font-size-xxl); }
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(--space-md);
}

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

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

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--accent-success) !important; }
.text-warning { color: var(--accent-warning) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-info { color: var(--accent-info) !important; }
.text-muted { color: var(--text-light) !important; }
.text-white { color: var(--white) !important; }

.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.font-weight-light { font-weight: 300 !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-medium { font-weight: 500 !important; }
.font-weight-semibold { font-weight: 600 !important; }
.font-weight-bold { font-weight: 700 !important; }

/* ===========================================
   3. LAYOUT & CONTAINERS
=========================================== */
.container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 576px) {
    .container { max-width: 540px; }
}

@media (min-width: 768px) {
    .container { max-width: 720px; }
}

@media (min-width: 992px) {
    .container { max-width: 960px; }
}

@media (min-width: 1200px) {
    .container { max-width: 1140px; }
}

@media (min-width: 1400px) {
    .container { max-width: 1320px; }
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

.col {
    flex: 1 0 0%;
    padding: 0 15px;
}

/* ===========================================
   4. BUTTONS
=========================================== */
.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    line-height: 1.5;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

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

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: var(--white);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    border-color: var(--secondary-dark);
}

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

.btn-warning {
    background-color: var(--accent-warning);
    color: var(--black);
    border-color: var(--accent-warning);
}

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

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

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

.btn-outline-secondary {
    background-color: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* ===========================================
   5. FORMS
=========================================== */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--primary-color);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    color: var(--text-color);
    background-color: var(--white);
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(36, 56, 117, 0.25);
}

.form-control::placeholder {
    color: var(--dark-gray);
    opacity: 1;
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--light-gray);
    opacity: 1;
}

.form-select {
    display: block;
    width: 100%;
    padding: 0.75rem 2.25rem 0.75rem 1rem;
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--white);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-select:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(36, 56, 117, 0.25);
}

.form-check {
    display: block;
    min-height: 1.5rem;
    padding-left: 1.5em;
    margin-bottom: var(--space-sm);
}

.form-check-input {
    width: 1em;
    height: 1em;
    margin-top: 0.25em;
    margin-left: -1.5em;
    vertical-align: top;
    background-color: var(--white);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 1px solid var(--medium-gray);
    appearance: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.form-check-input[type="checkbox"] {
    border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
    border-radius: var(--radius-circle);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-input:checked[type="checkbox"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

.form-check-input:checked[type="radio"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e");
}

.form-check-label {
    cursor: pointer;
}

.input-group {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    width: 100%;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    text-align: center;
    white-space: nowrap;
    background-color: var(--light-gray);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
}

.input-group > .form-control {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
}

.input-group > .form-control:focus {
    z-index: 3;
}

/* Validation Styles */
.is-invalid {
    border-color: var(--accent-danger) !important;
}

.is-valid {
    border-color: var(--accent-success) !important;
}

.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: var(--font-size-sm);
    color: var(--accent-danger);
}

.is-invalid ~ .invalid-feedback {
    display: block;
}

/* ===========================================
   6. CARDS
=========================================== */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--white);
    background-clip: border-box;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-body {
    flex: 1 1 auto;
    padding: var(--space-xl);
}

.card-title {
    margin-bottom: var(--space-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
}

.card-subtitle {
    margin-top: calc(-0.5 * var(--space-md));
    margin-bottom: var(--space-md);
    color: var(--text-light);
}

.card-text:last-child {
    margin-bottom: 0;
}

.card-header {
    padding: var(--space-lg) var(--space-xl);
    margin-bottom: 0;
    background-color: var(--light-bg);
    border-bottom: 1px solid var(--light-gray);
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
}

.card-header:first-child {
    border-radius: calc(var(--radius-lg) - 1px) calc(var(--radius-lg) - 1px) 0 0;
}

.card-footer {
    padding: var(--space-lg) var(--space-xl);
    background-color: var(--light-bg);
    border-top: 1px solid var(--light-gray);
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

.card-footer:last-child {
    border-radius: 0 0 calc(var(--radius-lg) - 1px) calc(var(--radius-lg) - 1px);
}

.card-img-top {
    width: 100%;
    border-top-left-radius: calc(var(--radius-lg) - 1px);
    border-top-right-radius: calc(var(--radius-lg) - 1px);
}

.card-img-bottom {
    width: 100%;
    border-bottom-left-radius: calc(var(--radius-lg) - 1px);
    border-bottom-right-radius: calc(var(--radius-lg) - 1px);
}

/* ===========================================
   7. ALERTS
=========================================== */
.alert {
    position: relative;
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
}

.alert-heading {
    color: inherit;
    margin-bottom: var(--space-sm);
}

.alert-link {
    font-weight: 600;
    text-decoration: underline;
}

.alert-dismissible {
    padding-right: 3rem;
}

.alert-dismissible .btn-close {
    position: absolute;
    top: 0;
    right: 0;
    padding: 1.25rem 1rem;
}

.alert-primary {
    color: #084298;
    background-color: #cfe2ff;
    border-color: #b6d4fe;
}

.alert-secondary {
    color: #41464b;
    background-color: #e2e3e5;
    border-color: #d3d6d8;
}

.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

.alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffecb5;
}

.alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}

.alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
}

/* ===========================================
   8. NAVIGATION
=========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--primary-gradient);
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background: rgba(36, 56, 117, 0.95);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    display: inline-flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.navbar-brand img {
    height: 40px;
    margin-right: 10px;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.navbar-nav .nav-link {
    padding: 0.5rem 1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--white);
    text-decoration: none;
}

.navbar-toggler {
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-lg);
    line-height: 1;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--white);
    cursor: pointer;
}

/* ===========================================
   9. BADGES
=========================================== */
.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: var(--font-size-xs);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-sm);
}

.badge:empty {
    display: none;
}

.badge-pill {
    padding-right: 0.6em;
    padding-left: 0.6em;
    border-radius: 10rem;
}

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

.badge-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

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

.badge-warning {
    background-color: var(--accent-warning);
    color: var(--black);
}

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

.badge-info {
    background-color: var(--accent-info);
    color: var(--white);
}

/* ===========================================
   10. UTILITIES
=========================================== */
/* Background Utilities */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--accent-success) !important; }
.bg-warning { background-color: var(--accent-warning) !important; }
.bg-danger { background-color: var(--accent-danger) !important; }
.bg-info { background-color: var(--accent-info) !important; }
.bg-light { background-color: var(--light-bg) !important; }
.bg-dark { background-color: var(--primary-dark) !important; }
.bg-white { background-color: var(--white) !important; }

/* Spacing Utilities */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mr-0 { margin-right: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }
.mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
.my-0 { margin-top: 0 !important; margin-bottom: 0 !important; }

.m-1 { margin: var(--space-xs) !important; }
.mt-1 { margin-top: var(--space-xs) !important; }
.mr-1 { margin-right: var(--space-xs) !important; }
.mb-1 { margin-bottom: var(--space-xs) !important; }
.ml-1 { margin-left: var(--space-xs) !important; }
.mx-1 { margin-left: var(--space-xs) !important; margin-right: var(--space-xs) !important; }
.my-1 { margin-top: var(--space-xs) !important; margin-bottom: var(--space-xs) !important; }

.m-2 { margin: var(--space-sm) !important; }
.mt-2 { margin-top: var(--space-sm) !important; }
.mr-2 { margin-right: var(--space-sm) !important; }
.mb-2 { margin-bottom: var(--space-sm) !important; }
.ml-2 { margin-left: var(--space-sm) !important; }
.mx-2 { margin-left: var(--space-sm) !important; margin-right: var(--space-sm) !important; }
.my-2 { margin-top: var(--space-sm) !important; margin-bottom: var(--space-sm) !important; }

.m-3 { margin: var(--space-md) !important; }
.mt-3 { margin-top: var(--space-md) !important; }
.mr-3 { margin-right: var(--space-md) !important; }
.mb-3 { margin-bottom: var(--space-md) !important; }
.ml-3 { margin-left: var(--space-md) !important; }
.mx-3 { margin-left: var(--space-md) !important; margin-right: var(--space-md) !important; }
.my-3 { margin-top: var(--space-md) !important; margin-bottom: var(--space-md) !important; }

.m-4 { margin: var(--space-lg) !important; }
.mt-4 { margin-top: var(--space-lg) !important; }
.mr-4 { margin-right: var(--space-lg) !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.ml-4 { margin-left: var(--space-lg) !important; }
.mx-4 { margin-left: var(--space-lg) !important; margin-right: var(--space-lg) !important; }
.my-4 { margin-top: var(--space-lg) !important; margin-bottom: var(--space-lg) !important; }

.m-5 { margin: var(--space-xl) !important; }
.mt-5 { margin-top: var(--space-xl) !important; }
.mr-5 { margin-right: var(--space-xl) !important; }
.mb-5 { margin-bottom: var(--space-xl) !important; }
.ml-5 { margin-left: var(--space-xl) !important; }
.mx-5 { margin-left: var(--space-xl) !important; margin-right: var(--space-xl) !important; }
.my-5 { margin-top: var(--space-xl) !important; margin-bottom: var(--space-xl) !important; }

.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pr-0 { padding-right: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }
.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }

.p-1 { padding: var(--space-xs) !important; }
.pt-1 { padding-top: var(--space-xs) !important; }
.pr-1 { padding-right: var(--space-xs) !important; }
.pb-1 { padding-bottom: var(--space-xs) !important; }
.pl-1 { padding-left: var(--space-xs) !important; }
.px-1 { padding-left: var(--space-xs) !important; padding-right: var(--space-xs) !important; }
.py-1 { padding-top: var(--space-xs) !important; padding-bottom: var(--space-xs) !important; }

.p-2 { padding: var(--space-sm) !important; }
.pt-2 { padding-top: var(--space-sm) !important; }
.pr-2 { padding-right: var(--space-sm) !important; }
.pb-2 { padding-bottom: var(--space-sm) !important; }
.pl-2 { padding-left: var(--space-sm) !important; }
.px-2 { padding-left: var(--space-sm) !important; padding-right: var(--space-sm) !important; }
.py-2 { padding-top: var(--space-sm) !important; padding-bottom: var(--space-sm) !important; }

.p-3 { padding: var(--space-md) !important; }
.pt-3 { padding-top: var(--space-md) !important; }
.pr-3 { padding-right: var(--space-md) !important; }
.pb-3 { padding-bottom: var(--space-md) !important; }
.pl-3 { padding-left: var(--space-md) !important; }
.px-3 { padding-left: var(--space-md) !important; padding-right: var(--space-md) !important; }
.py-3 { padding-top: var(--space-md) !important; padding-bottom: var(--space-md) !important; }

.p-4 { padding: var(--space-lg) !important; }
.pt-4 { padding-top: var(--space-lg) !important; }
.pr-4 { padding-right: var(--space-lg) !important; }
.pb-4 { padding-bottom: var(--space-lg) !important; }
.pl-4 { padding-left: var(--space-lg) !important; }
.px-4 { padding-left: var(--space-lg) !important; padding-right: var(--space-lg) !important; }
.py-4 { padding-top: var(--space-lg) !important; padding-bottom: var(--space-lg) !important; }

.p-5 { padding: var(--space-xl) !important; }
.pt-5 { padding-top: var(--space-xl) !important; }
.pr-5 { padding-right: var(--space-xl) !important; }
.pb-5 { padding-bottom: var(--space-xl) !important; }
.pl-5 { padding-left: var(--space-xl) !important; }
.px-5 { padding-left: var(--space-xl) !important; padding-right: var(--space-xl) !important; }
.py-5 { padding-top: var(--space-xl) !important; padding-bottom: var(--space-xl) !important; }

/* Display Utilities */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flex Utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-row-reverse { flex-direction: row-reverse !important; }
.flex-column-reverse { flex-direction: column-reverse !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.flex-wrap-reverse { flex-wrap: wrap-reverse !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }
.align-content-start { align-content: flex-start !important; }
.align-content-end { align-content: flex-end !important; }
.align-content-center { align-content: center !important; }
.align-content-between { align-content: space-between !important; }
.align-content-around { align-content: space-around !important; }
.align-content-stretch { align-content: stretch !important; }
.align-self-auto { align-self: auto !important; }
.align-self-start { align-self: flex-start !important; }
.align-self-end { align-self: flex-end !important; }
.align-self-center { align-self: center !important; }
.align-self-baseline { align-self: baseline !important; }
.align-self-stretch { align-self: stretch !important; }

/* Border Utilities */
.border { border: 1px solid var(--light-gray) !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--light-gray) !important; }
.border-end { border-right: 1px solid var(--light-gray) !important; }
.border-bottom { border-bottom: 1px solid var(--light-gray) !important; }
.border-start { border-left: 1px solid var(--light-gray) !important; }

.border-primary { border-color: var(--primary-color) !important; }
.border-secondary { border-color: var(--secondary-color) !important; }
.border-success { border-color: var(--accent-success) !important; }
.border-warning { border-color: var(--accent-warning) !important; }
.border-danger { border-color: var(--accent-danger) !important; }
.border-info { border-color: var(--accent-info) !important; }
.border-light { border-color: var(--light-gray) !important; }
.border-dark { border-color: var(--primary-dark) !important; }
.border-white { border-color: var(--white) !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-0 { border-radius: 0 !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-circle { border-radius: var(--radius-circle) !important; }
.rounded-pill { border-radius: 50rem !important; }

/* Shadow Utilities */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* Opacity Utilities */
.opacity-0 { opacity: 0 !important; }
.opacity-25 { opacity: 0.25 !important; }
.opacity-50 { opacity: 0.5 !important; }
.opacity-75 { opacity: 0.75 !important; }
.opacity-100 { opacity: 1 !important; }

/* Position Utilities */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Text Utilities */
.text-uppercase { text-transform: uppercase !important; }
.text-lowercase { text-transform: lowercase !important; }
.text-capitalize { text-transform: capitalize !important; }

/* Width & Height Utilities */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.mw-100 { max-width: 100% !important; }
.mh-100 { max-height: 100% !important; }

.vw-100 { width: 100vw !important; }
.vh-100 { height: 100vh !important; }

/* ===========================================
   11. CUSTOM COMPONENTS
=========================================== */
/* Hero Section */
.hero-section {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 8rem 0 6rem;
    margin-top: 76px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/pattern.svg');
    opacity: 0.1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    border: 1px solid var(--light-gray);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
    transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Price Cards */
.price-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

.price-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    margin: 1rem 0;
}

.price-features {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.price-features li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed var(--light-gray);
}

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

.price-features li i {
    color: var(--accent-success);
    margin-right: 0.5rem;
}

/* Step Indicator */
.step-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 3rem 0;
    position: relative;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    margin: 0 2rem;
}

.step-circle {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-circle);
    background: var(--light-gray);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    transition: all var(--transition-normal);
}

.step.active .step-circle {
    background: var(--primary-gradient);
    color: var(--white);
    transform: scale(1.1);
}

.step.completed .step-circle {
    background: var(--accent-success);
    color: var(--white);
}

.step-line {
    position: absolute;
    top: 25px;
    left: 15%;
    right: 15%;
    height: 3px;
    background: var(--light-gray);
    z-index: 1;
}

/* Form Sections */
.form-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--light-gray);
}

.section-title {
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

/* Price Preview Box */
.price-preview {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border-left: 4px solid var(--primary-color);
}

.price-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px dashed var(--light-gray);
}

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

.price-total {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    border-top: 2px solid var(--light-gray);
    padding-top: 1rem;
    margin-top: 0.5rem;
}

/* QR Code Container */
.qr-container {
    background: var(--white);
    border: 2px dashed var(--medium-gray);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: inline-block;
    margin: 1rem 0;
}

.qr-code {
    width: 250px;
    height: 250px;
    object-fit: contain;
}

/* UPI ID Box */
.upi-id-box {
    background: var(--light-bg);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 1.25rem;
    letter-spacing: 1px;
    display: inline-block;
    margin: 1rem 0;
}

/* Timer Box */
.timer-box {
    background: var(--accent-warning);
    color: var(--black);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    font-weight: 600;
    text-align: center;
    margin: 1.5rem 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.8; }
    100% { opacity: 1; }
}

/* Payment Methods */
.payment-methods {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.payment-method {
    width: 80px;
    height: 60px;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.payment-method:hover,
.payment-method.active {
    border-color: var(--primary-color);
    background: var(--light-bg);
    transform: translateY(-3px);
}

/* Confirmation Card */
.confirmation-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    max-width: 800px;
    margin: 2rem auto;
}

.confirmation-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 3rem;
    text-align: center;
}

.confirmation-icon {
    width: 100px;
    height: 100px;
    background: var(--white);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--accent-success);
    font-size: 3rem;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 3rem auto;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 6px;
    background: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

/* Comparison Table */
.comparison-table {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table th {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 1rem;
    text-align: center;
    font-weight: 600;
}

.comparison-table td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--light-gray);
}

/* FAQ Accordion */
.faq-accordion .accordion-button {
    font-weight: 600;
    padding: 1.25rem;
    background: var(--light-bg);
    border: none;
    border-radius: var(--radius-md) !important;
}

.faq-accordion .accordion-button:not(.collapsed) {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: none;
}

.faq-accordion .accordion-body {
    padding: 1.25rem;
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Contact Cards */
.contact-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    border: 1px solid transparent;
}

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

.contact-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-gradient);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 1.75rem;
}

/* Social Icons */
.social-icons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-circle);
    background: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.social-icon:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    color: var(--white);
    text-decoration: none;
}

/* ===========================================
   12. RESPONSIVE DESIGN
=========================================== */
@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    h4 { font-size: 1.5rem; }
    
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.125rem; }
    
    /* Layout */
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    /* Hero Section */
    .hero-section {
        padding: 6rem 0 4rem;
        margin-top: 64px;
    }
    
    /* Cards */
    .card-body {
        padding: 1.5rem;
    }
    
    /* Step Indicator */
    .step-indicator {
        flex-direction: column;
        gap: 2rem;
    }
    
    .step {
        margin: 0;
    }
    
    .step-line {
        display: none;
    }
    
    /* Timeline */
    .timeline::before {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    /* Forms */
    .form-control,
    .form-select {
        padding: 0.625rem 0.875rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.625rem 1.25rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    
    /* QR Code */
    .qr-code {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 576px) {
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title { font-size: 2rem; }
    
    /* Spacing */
    .px-sm-2 {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }
    
    /* Cards */
    .card {
        border-radius: var(--radius-md);
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    /* Buttons */
    .btn-block-sm {
        display: block;
        width: 100%;
    }
    
    /* Navigation */
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    /* Forms */
    .form-row {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-bg: #1a1a1a;
        --text-color: #ffffff;
        --light-gray: #2d2d2d;
        --medium-gray: #404040;
        --dark-gray: #666666;
    }
    
    .card,
    .feature-card,
    .price-card {
        background: #2d2d2d;
        border-color: #404040;
    }
    
    .form-control,
    .form-select {
        background: #2d2d2d;
        border-color: #404040;
        color: #ffffff;
    }
    
    .form-control:focus {
        background: #2d2d2d;
        color: #ffffff;
    }
}

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --accent-danger: #ff0000;
        --accent-success: #008000;
    }
}

/* ===========================================
   13. ANIMATIONS & EFFECTS
=========================================== */
@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 bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.bounce {
    animation: bounce 2s infinite;
}

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

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-circle);
    animation: spin 1s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* ===========================================
   END OF STYLESHEET
=========================================== */