/* ============================================
   GSSS Budhwali - Main Stylesheet
   Design System & Core Styles
   ============================================ */

/* ========== CSS Variables & Design Tokens ========== */
:root {
    /* Colors - Indian Flag Theme */
    --color-saffron: #FF9933;
    --color-saffron-light: #FFB366;
    --color-saffron-dark: #E67300;
    --color-white: #FFFFFF;
    --color-green: #138808;
    --color-green-light: #16A50B;
    --color-green-dark: #0F6B06;
    --color-blue: #000080;
    /* Navy Blue - Ashoka Chakra */

    /* Neutrals */
    --color-bg: #FAFAFA;
    --color-bg-secondary: #F5F5F5;
    --color-text: #1A1A1A;
    --color-text-secondary: #4A4A4A;
    --color-text-muted: #757575;
    --color-border: #E0E0E0;
    --color-shadow: rgba(0, 0, 0, 0.1);

    /* Semantic Colors */
    --color-success: var(--color-green);
    --color-info: #2196F3;
    --color-warning: #FF9800;
    --color-error: #F44336;

    /* Typography */
    --font-primary: 'Poppins', 'Noto Sans Devanagari', sans-serif;
    --font-secondary: 'Inter', 'Noto Sans Devanagari', sans-serif;
    --font-body: 'Roboto', 'Noto Sans Devanagari', sans-serif;

    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.875rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2.25rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.75rem);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-padding: var(--space-md);
    --section-padding: var(--space-3xl);

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

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 var(--color-shadow);
    --shadow-md: 0 4px 6px -1px var(--color-shadow);
    --shadow-lg: 0 10px 15px -3px var(--color-shadow);
    --shadow-xl: 0 20px 25px -5px var(--color-shadow);
    --shadow-glow: 0 0 20px rgba(255, 153, 51, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-popover: 500;
    --z-tooltip: 600;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

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

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

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

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

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

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

p {
    margin-bottom: var(--space-sm);
}

a {
    color: var(--color-green);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-green-dark);
}

/* ========== Layout Components ========== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.section--alt {
    background-color: var(--color-bg-secondary);
}

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

.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));
}

@media (max-width: 768px) {

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

/* ========== Flexbox Utilities ========== */
.flex {
    display: flex;
}

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

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

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

/* ========== Card Component ========== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card--glass {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ========== Button Component ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-secondary);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-saffron), var(--color-saffron-dark));
    color: var(--color-white);
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--color-saffron-dark), var(--color-saffron));
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn--secondary {
    background: linear-gradient(135deg, var(--color-green), var(--color-green-dark));
    color: var(--color-white);
}

.btn--secondary:hover {
    background: linear-gradient(135deg, var(--color-green-dark), var(--color-green));
    transform: translateY(-2px);
}

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

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

/* ========== Section Headings ========== */
.section-heading {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-heading__title {
    position: relative;
    display: inline-block;
    margin-bottom: var(--space-sm);
}

.section-heading__title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-saffron), var(--color-green));
    border-radius: var(--radius-full);
}

.section-heading__subtitle {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 400;
    color: var(--color-text-secondary);
}

/* ========== Utility Classes ========== */
.text-center {
    text-align: center;
}

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

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

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

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

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

.bg-primary {
    background-color: var(--color-saffron);
}

.bg-secondary {
    background-color: var(--color-green);
}

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

.mt-xs {
    margin-top: var(--space-xs);
}

.mt-sm {
    margin-top: var(--space-sm);
}

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

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

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

.mb-xs {
    margin-bottom: var(--space-xs);
}

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

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

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

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

.hidden {
    display: none;
}

.visible {
    display: block;
}

/* ========== Responsive Utilities ========== */
@media (max-width: 768px) {
    :root {
        --section-padding: var(--space-2xl);
        --container-padding: var(--space-sm);
    }

    .hide-mobile {
        display: none;
    }
}

@media (min-width: 769px) {
    .hide-desktop {
        display: none;
    }
}

/* ========== Scroll Reveal Animation Base ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Smooth Scroll Enhancement ========== */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}