/*
 * Paripath — Main Stylesheet
 * Design System: Dark-first, Saffron/Orange + Deep Blue palette
 * Fonts: Inter (English) + Noto Sans Devanagari (Marathi/Hindi)
 */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Brand Colors */
    --clr-primary: #FF6B35;
    --clr-primary-dark: #E55A2B;
    --clr-primary-light: #FF8C5A;
    --clr-primary-glow: rgba(255, 107, 53, 0.3);
    --clr-accent: #004E89;
    --clr-accent-light: #1A6FB5;

    /* Semantic Colors */
    --clr-success: #2ECC71;
    --clr-warning: #F39C12;
    --clr-danger: #E74C3C;
    --clr-info: #3498DB;

    /* Typography */
    --font-en: 'Inter', sans-serif;
    --font-dev: 'Noto Sans Devanagari', sans-serif;
    --font-body: var(--font-dev);
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --lh-tight: 1.3;
    --lh-normal: 1.6;
    --lh-loose: 1.8;

    /* Spacing (8px grid) */
    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 20px;
    --sp-6: 24px;
    --sp-8: 32px;
    --sp-10: 40px;
    --sp-12: 48px;
    --sp-16: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--clr-primary-glow);

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;

    /* Layout */
    --container-max: 1200px;
    --header-height: 64px;
}

/* ===== DARK THEME (default) ===== */
.theme-dark {
    --clr-bg: #0B0B14;
    --clr-bg-elevated: #12121F;
    --clr-bg-card: #1A1A2E;
    --clr-bg-card-hover: #222240;
    --clr-bg-input: #16162B;
    --clr-text: #EAEAF0;
    --clr-text-secondary: #9090A8;
    --clr-text-muted: #606078;
    --clr-border: #2A2A42;
    --clr-border-light: #35355A;
    --clr-overlay: rgba(0, 0, 0, 0.7);
}

/* ===== LIGHT THEME ===== */
.theme-light {
    --clr-bg: #F5F5FA;
    --clr-bg-elevated: #FFFFFF;
    --clr-bg-card: #FFFFFF;
    --clr-bg-card-hover: #F0F0F5;
    --clr-bg-input: #F0F0F5;
    --clr-text: #1A1A2E;
    --clr-text-secondary: #555570;
    --clr-text-muted: #8888A0;
    --clr-border: #DDDDE5;
    --clr-border-light: #EEEEF2;
    --clr-overlay: rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* English text uses Inter */
[data-lang="en"] { --font-body: var(--font-en); }

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

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

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    color: var(--clr-text);
    background: var(--clr-bg);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background subtle pattern */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(255,107,53,0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(0,78,137,0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

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

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
    line-height: var(--lh-tight);
    font-weight: 600;
    color: var(--clr-text);
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin-bottom: var(--sp-4); }

::selection {
    background: var(--clr-primary);
    color: white;
}

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--sp-4);
}

.skip-link {
    position: absolute;
    top: -100px;
    left: var(--sp-4);
    background: var(--clr-primary);
    color: white;
    padding: var(--sp-2) var(--sp-4);
    border-radius: var(--radius-sm);
    z-index: 1000;
    transition: var(--transition);
}
.skip-link:focus { top: var(--sp-2); color: white; }

/* ===== HEADER ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--clr-bg-elevated);
    border-bottom: 1px solid var(--clr-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--sp-4);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--clr-text);
    text-decoration: none;
    flex-shrink: 0;
}
.site-logo:hover { color: var(--clr-primary); }
.logo-icon { font-size: 1.8rem; }
.logo-primary { font-size: var(--fs-lg); font-weight: 700; display: block; }
.logo-sub { font-size: var(--fs-xs); color: var(--clr-text-secondary); display: block; max-width: 200px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Main Nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}

.nav-link {
    color: var(--clr-text-secondary);
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-sm);
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: var(--transition-fast);
    white-space: nowrap;
}
.nav-link:hover { color: var(--clr-text); background: var(--clr-bg-card); }
.nav-highlight {
    color: var(--clr-primary);
    background: rgba(255, 107, 53, 0.1);
}
.nav-highlight:hover { background: rgba(255, 107, 53, 0.2); color: var(--clr-primary); }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-toggle { cursor: pointer; background: none; border: none; font: inherit; }
.dropdown-arrow { font-size: 0.7em; }
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--clr-bg-elevated);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 200;
    min-width: 200px;
}
.nav-dropdown:hover .dropdown-menu,
.dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.sections-mega-menu {
    display: flex;
    gap: var(--sp-6);
    padding: var(--sp-6);
    min-width: 500px;
}
.mega-col { display: flex; flex-direction: column; gap: var(--sp-2); }
.mega-col h4 { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 1px; color: var(--clr-primary); margin-bottom: var(--sp-2); }
.mega-col a {
    color: var(--clr-text-secondary);
    font-size: var(--fs-sm);
    padding: var(--sp-1) 0;
}
.mega-col a:hover { color: var(--clr-primary); }

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

/* Language Switcher */
.language-switcher { position: relative; }
.lang-toggle {
    display: flex; align-items: center; gap: var(--sp-2);
    background: none; border: 1px solid var(--clr-border);
    color: var(--clr-text-secondary);
    padding: var(--sp-1) var(--sp-3);
    border-radius: var(--radius-full);
    cursor: pointer; font-size: var(--fs-sm);
    transition: var(--transition-fast);
}
.lang-toggle:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.lang-dropdown {
    position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--clr-bg-elevated); border: 1px solid var(--clr-border);
    border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transition: var(--transition);
    min-width: 120px; overflow: hidden;
}
.language-switcher:hover .lang-dropdown { opacity: 1; visibility: visible; }
.lang-option {
    display: block; padding: var(--sp-2) var(--sp-4);
    color: var(--clr-text-secondary); font-size: var(--fs-sm);
}
.lang-option:hover { background: var(--clr-bg-card); color: var(--clr-text); }
.lang-option.active { color: var(--clr-primary); font-weight: 600; }

/* Theme Toggle */
.theme-toggle {
    background: none; border: 1px solid var(--clr-border);
    width: 36px; height: 36px; border-radius: var(--radius-full);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: var(--transition-fast); font-size: 1rem;
}
.theme-toggle:hover { border-color: var(--clr-primary); }
.theme-dark .theme-icon-light { display: none; }
.theme-light .theme-icon-dark { display: none; }

/* Size Toggle (matches Theme Toggle) */
.size-toggle {
    background: none; border: 1px solid var(--clr-border);
    width: 36px; height: 36px; border-radius: var(--radius-full);
    cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    transition: var(--transition-fast); font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-text-secondary);
}
.size-toggle:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.size-toggle:active { transform: scale(0.95); }
#textSizeDec { font-size: 0.75rem; }
#textSizeReset { font-size: 0.85rem; }
#textSizeInc { font-size: 0.95rem; }

/* User Menu */
.user-menu { position: relative; }
.user-avatar-btn {
    background: none; border: 2px solid var(--clr-border);
    border-radius: var(--radius-full); padding: 2px; cursor: pointer;
    transition: var(--transition-fast);
}
.user-avatar-btn:hover { border-color: var(--clr-primary); }
.user-avatar { width: 32px; height: 32px; border-radius: var(--radius-full); object-fit: cover; }

.user-dropdown {
    right: 0; left: auto; transform: translateY(8px);
    min-width: 220px;
}
.user-menu:hover .user-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.user-info {
    padding: var(--sp-4);
    border-bottom: 1px solid var(--clr-border);
    display: flex; flex-direction: column; gap: var(--sp-1);
}
.user-info strong { color: var(--clr-text); }
.user-info small { color: var(--clr-text-muted); font-size: var(--fs-xs); }
.user-dropdown a {
    display: block; padding: var(--sp-3) var(--sp-4);
    color: var(--clr-text-secondary); font-size: var(--fs-sm);
}
.user-dropdown a:hover { background: var(--clr-bg-card); color: var(--clr-text); }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    width: 36px; height: 36px;
    flex-direction: column; align-items: center; justify-content: center;
}
.hamburger,
.hamburger::before,
.hamburger::after {
    display: block; width: 22px; height: 2px;
    background: var(--clr-text); border-radius: 2px;
    transition: var(--transition);
}
.hamburger { position: relative; }
.hamburger::before, .hamburger::after {
    content: ''; position: absolute; left: 0;
}
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }
.mobile-menu-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.mobile-menu-toggle[aria-expanded="true"] .hamburger::before { top: 0; transform: rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] .hamburger::after { top: 0; transform: rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
    display: none;
    background: var(--clr-bg-elevated);
    border-top: 1px solid var(--clr-border);
    padding: var(--sp-4);
    max-height: 60vh; overflow-y: auto;
}
.mobile-nav.active { display: block; }
.mobile-nav-inner { display: flex; flex-direction: column; gap: var(--sp-1); }
.mobile-nav a {
    display: block;
    padding: var(--sp-3) var(--sp-4);
    color: var(--clr-text-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--fs-sm);
}
.mobile-nav a:hover { background: var(--clr-bg-card); color: var(--clr-text); }

/* ===== MAIN CONTENT ===== */
.site-main {
    min-height: calc(100vh - var(--header-height) - 300px);
    padding: var(--sp-8) 0;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
    background: var(--clr-bg-elevated);
    padding: var(--sp-3) 0;
    border-bottom: 1px solid var(--clr-border);
}
.breadcrumbs ol {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--sp-4);
    font-size: var(--fs-sm);
}
.breadcrumbs li { display: flex; align-items: center; gap: var(--sp-2); }
.breadcrumbs a { color: var(--clr-text-secondary); }
.breadcrumbs a:hover { color: var(--clr-primary); }
.breadcrumbs span { color: var(--clr-text-muted); }
.breadcrumb-sep { color: var(--clr-text-muted); }

/* ===== FLASH MESSAGES ===== */
.flash-container {
    position: fixed; top: calc(var(--header-height) + var(--sp-4)); right: var(--sp-4);
    z-index: 300; display: flex; flex-direction: column; gap: var(--sp-2);
    max-width: 400px; width: 100%;
}
.flash-message {
    display: flex; align-items: center; gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    animation: slideIn 0.3s ease;
    backdrop-filter: blur(10px);
}
.flash-success { background: rgba(46, 204, 113, 0.15); border: 1px solid var(--clr-success); color: var(--clr-success); }
.flash-error { background: rgba(231, 76, 60, 0.15); border: 1px solid var(--clr-danger); color: var(--clr-danger); }
.flash-warning { background: rgba(243, 156, 18, 0.15); border: 1px solid var(--clr-warning); color: var(--clr-warning); }
.flash-info { background: rgba(52, 152, 219, 0.15); border: 1px solid var(--clr-info); color: var(--clr-info); }
.flash-close {
    background: none; border: none; color: inherit;
    cursor: pointer; margin-left: auto; font-size: 1.2rem;
    opacity: 0.7;
}
.flash-close:hover { opacity: 1; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--clr-bg-elevated);
    border-top: 1px solid var(--clr-border);
    padding: var(--sp-16) 0 var(--sp-8);
    margin-top: var(--sp-16);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--sp-8);
}

.footer-logo {
    display: flex; align-items: center; gap: var(--sp-3);
    font-size: var(--fs-xl); font-weight: 700;
    margin-bottom: var(--sp-4);
}
.footer-tagline { color: var(--clr-text-secondary); font-size: var(--fs-sm); margin-bottom: var(--sp-6); }

.footer-social { display: flex; gap: var(--sp-3); }
.social-link {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--clr-border); border-radius: var(--radius-full);
    color: var(--clr-text-secondary);
    transition: var(--transition-fast);
}
.social-link:hover {
    border-color: var(--clr-primary); color: var(--clr-primary);
    transform: translateY(-2px);
}

.footer-col h4 {
    font-size: var(--fs-sm); font-weight: 600;
    color: var(--clr-text); margin-bottom: var(--sp-4);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-links a { color: var(--clr-text-secondary); font-size: var(--fs-sm); }
.footer-links a:hover { color: var(--clr-primary); }

.footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: var(--sp-12);
    padding-top: var(--sp-6);
    border-top: 1px solid var(--clr-border);
    color: var(--clr-text-muted);
    font-size: var(--fs-sm);
}
.footer-made { color: var(--clr-primary); }

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
    .main-nav { display: none; }
    .mobile-menu-toggle { display: flex; }
    .sections-mega-menu { flex-direction: column; min-width: auto; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 575px) {
    :root { --header-height: 56px; }
    h1 { font-size: var(--fs-2xl); }
    h2 { font-size: var(--fs-xl); }
    .logo-sub { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: var(--sp-2); text-align: center; }
    .lang-current { display: none; }
}