:root {
    --primary-color: #38BDF8;   /* Sky Blue */
    --primary-hover: #0284c7;   /* Darker Sky Blue */
    --secondary-color: #7DD3FC; /* Light Sky Blue */
    --secondary-hover: #38BDF8;
    --accent-color: #FFFFFF;
    --dark-bg: #0F172A;
    --light-bg: #F8FAFC;
    --dark-text: #0F172A;
    --light-text: #64748B;
    --nav-bg: #0d3b7c;          /* Dark navy for navbar */
    --transition-speed: 0.3s;
    --border-radius: 20px;
}

body {
    font-family: 'Poppins', 'Inter', sans-serif;
    color: var(--dark-text);
    background-color: var(--light-bg);
    overflow-x: hidden;
    padding-top: 185px;
    -webkit-font-smoothing: antialiased;
}

@media (max-width: 991px) {
    body {
        padding-top: 0;
    }
    .site-header {
        position: relative !important;
    }
}

/* ── Header Shell ── */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1030;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.10);
}

/* ── Top Bar (Sky Blue) ── */
.top-bar {
    background-color: var(--primary-color);
    color: #fff;
    padding: 8px 0;
    font-size: 0.8rem;
    font-weight: 500;
}
.top-bar a {
    color: #fff;
    text-decoration: none;
    transition: color var(--transition-speed);
}
.top-bar a:hover { color: #0F172A; }
.top-bar .social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    color: #fff;
    font-size: 0.75rem;
    transition: background var(--transition-speed);
    text-decoration: none;
    margin-left: 4px;
}
.top-bar .social-icon:hover { background: #fff; color: var(--primary-color); }

/* ── Middle Header ── */
.middle-header {
    background: #fff;
    padding: 10px 0;
    border-bottom: 1px solid #e5e7eb;
}
.nhrc-org-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #0d3b7c;
    letter-spacing: -0.3px;
    line-height: 1.2;
}
.nhrc-org-subtitle {
    font-size: 0.68rem;
    letter-spacing: 2px;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    margin-top: 2px;
}
.nhrc-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #374151;
    padding: 3px 10px 3px 6px;
    border-radius: 20px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}
.nhrc-badge i { color: var(--primary-color); font-size: 0.78rem; }
.btn-hdr-login {
    border: 2px solid var(--nav-bg);
    color: var(--nav-bg);
    border-radius: 50px;
    padding: 7px 22px;
    font-weight: 600;
    font-size: 0.85rem;
    background: transparent;
    transition: all var(--transition-speed);
}
.btn-hdr-login:hover {
    background: var(--nav-bg);
    color: #fff;
}
.btn-hdr-signup {
    background: var(--nav-bg);
    color: #fff;
    border-radius: 50px;
    padding: 7px 22px;
    font-weight: 600;
    font-size: 0.85rem;
    border: 2px solid var(--nav-bg);
    transition: all var(--transition-speed);
}
.btn-hdr-signup:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
}
.btn-hdr-donate {
    background: var(--nav-bg);
    color: #fff;
    border-radius: 50px;
    padding: 7px 22px;
    font-weight: 600;
    font-size: 0.85rem;
    border: 2px solid var(--nav-bg);
    transition: all var(--transition-speed);
}
.btn-hdr-donate:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
}

/* ── Main Nav Bar (White with dark text) ── */
.main-nav {
    background: #fff !important;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}
.main-nav .nav-link {
    font-weight: 500;
    color: #1e293b !important;
    padding: 12px 10px !important;
    text-transform: capitalize;
    font-size: 0.85rem;
    transition: all var(--transition-speed);
    white-space: nowrap;
}
.main-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: transparent;
}
.main-nav .nav-link.nav-active {
    color: var(--primary-color) !important;
    font-weight: 700;
    border-bottom: 2px solid var(--primary-color);
}
.main-nav .dropdown-menu {
    background: #fff;
    border: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-radius: 8px;
    margin-top: 0 !important;
}
.main-nav .dropdown-item {
    font-size: 0.85rem;
    color: #1e293b;
    padding: 8px 18px;
    font-weight: 500;
}
.main-nav .dropdown-item:hover {
    background: #eff6ff;
    color: var(--primary-color);
}

/* Glassmorphism Classes */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    border-radius: var(--border-radius);
}

.glass-nav {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(10px);
}

/* Buttons */
.btn-login {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 50px;
    padding: 8px 25px;
    font-weight: 600;
    background: transparent;
    transition: all var(--transition-speed);
}
.btn-login:hover {
    background: var(--primary-color);
    color: var(--accent-color);
}
.btn-signup {
    background: var(--primary-color);
    color: var(--accent-color);
    border-radius: 50px;
    padding: 8px 25px;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    transition: all var(--transition-speed);
}
.btn-signup:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--accent-color);
}
.btn-donate {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--accent-color) !important;
    border-radius: 50px;
    padding: 12px 35px;
    font-weight: 700;
    border: none;
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.3);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.btn-donate:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(56, 189, 248, 0.4);
}

/* Modals */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}
.modal-header {
    background: var(--primary-color);
    color: var(--accent-color);
    border-bottom: none;
    padding: 20px 30px;
}
.modal-title {
    font-weight: 700;
}
.btn-close-white {
    filter: invert(1);
}
.modal-body {
    padding: 30px;
}
.form-control {
    border-radius: 12px;
    padding: 14px 18px;
    border: 1px solid rgba(0,0,0,0.1);
    background-color: #fff;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(56, 189, 248, 0.25);
}

/* Swiper Slider */
.hero-slider {
    width: 100%;
    height: 88vh;
    min-height: 600px;
}
.swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.swiper-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(105deg, rgba(10, 15, 30, 0.88) 0%, rgba(15, 23, 42, 0.6) 55%, rgba(15, 23, 42, 0.15) 100%);
}
.swiper-content {
    position: relative;
    z-index: 10;
    color: var(--accent-color);
    text-align: left;
    padding-left: 4rem;
    padding-right: 2rem;
    max-width: 820px;
    margin-top: 80px;
}
.swiper-content .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-color);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    animation: slideInDown 0.7s ease both;
    animation-delay: 0.1s;
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.4);
}
.swiper-content h1 {
    font-size: clamp(2.8rem, 5vw, 4.8rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.05;
    text-shadow: 0 4px 20px rgba(0,0,0,0.4);
    animation: slideInUp 0.7s ease both;
    animation-delay: 0.2s;
    letter-spacing: -1px;
}
.swiper-content p.lead {
    font-size: 1.15rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.88);
    max-width: 600px;
    margin-bottom: 2.5rem;
    animation: slideInUp 0.7s ease both;
    animation-delay: 0.35s;
    font-weight: 400;
}
.swiper-content .hero-btns {
    animation: slideInUp 0.7s ease both;
    animation-delay: 0.5s;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}
.swiper-content .hero-btns .btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary-color), #0ea5e9);
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    padding: 15px 36px;
    border-radius: 50px;
    border: none;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(56,189,248,0.4);
    transition: transform 0.3s, box-shadow 0.3s;
}
.swiper-content .hero-btns .btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(56,189,248,0.5);
    color: #fff;
}
.swiper-content .hero-btns .btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.12);
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    padding: 14px 34px;
    border-radius: 50px;
    border: 2px solid rgba(255,255,255,0.5);
    text-decoration: none;
    backdrop-filter: blur(5px);
    transition: all 0.3s;
}
.swiper-content .hero-btns .btn-hero-secondary:hover {
    background: rgba(255,255,255,0.25);
    border-color: #fff;
    transform: translateY(-3px);
    color: #fff;
}
.swiper-content .hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    animation: slideInUp 0.7s ease both;
    animation-delay: 0.6s;
}
.swiper-content .hero-stat-item .stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}
.swiper-content .hero-stat-item .stat-label {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2px;
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Swiper pagination & nav */
.swiper-button-next, .swiper-button-prev {
    width: 52px !important;
    height: 52px !important;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    backdrop-filter: blur(5px);
    transition: all 0.3s;
}
.swiper-button-next:hover, .swiper-button-prev:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}
.swiper-button-next::after, .swiper-button-prev::after {
    font-size: 1rem !important;
    color: #fff;
    font-weight: 700;
}
.swiper-pagination-bullet {
    width: 28px !important;
    height: 4px !important;
    border-radius: 4px !important;
    background: rgba(255,255,255,0.4) !important;
    opacity: 1 !important;
    transition: all 0.3s !important;
}
.swiper-pagination-bullet-active {
    background: var(--primary-color) !important;
    width: 44px !important;
}

@media (max-width: 768px) {
    .hero-slider { height: 70vh; }
    .swiper-content { padding-left: 1.5rem; padding-right: 1.5rem; }
    .swiper-content h1 { font-size: 2.2rem; }
    .swiper-content .hero-stats { flex-wrap: wrap; gap: 1rem; }
}

/* Cause Cards */
.cause-card {
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    border-radius: var(--border-radius);
    background: var(--accent-color);
}
.cause-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08) !important;
}
.cause-card .card-img-top {
    height: 240px;
    object-fit: cover;
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

/* Custom Footer */
.footer-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s, padding-left 0.3s;
    display: inline-block;
}
.footer-link:hover {
    color: var(--primary-color);
    padding-left: 8px;
}
.page-header {
    background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.85)), url('https://images.unsplash.com/photo-1593113515438-bb410d8a5f8b?auto=format&fit=crop&w=1920&q=80') center/cover;
    padding: 100px 0 60px;
    color: white;
    text-align: center;
}

/* Custom NGO Theme Additions */
.text-brand { color: var(--primary-color) !important; }
.bg-brand { background-color: var(--primary-color) !important; }
.text-accent { color: var(--accent-color) !important; }
.bg-accent { background-color: var(--accent-color) !important; }
.text-slate { color: var(--dark-text) !important; }
.text-slate-light { color: var(--light-text) !important; }

.btn-brand { background-color: var(--primary-color); color: var(--accent-color); transition: 0.3s; border-radius: 50px; font-weight: 600; }
.btn-brand:hover { background-color: var(--primary-hover); color: var(--accent-color); box-shadow: 0 8px 15px rgba(56, 189, 248, 0.3); transform: translateY(-2px); }

.section-title { position: relative; display: inline-block; padding-bottom: 15px; font-weight: 800; color: var(--dark-text); }
.section-title::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 80px; height: 4px; background-color: var(--primary-color); border-radius: 4px; }
.section-title.text-start::after { left: 0; transform: none; }

.testimonial-card { 
    background: var(--accent-color); 
    padding: 40px 30px; 
    border-radius: var(--border-radius); 
    box-shadow: 0 10px 40px rgba(0,0,0,0.04); 
    border-bottom: 4px solid var(--primary-color);
    transition: transform var(--transition-speed);
}
.testimonial-card:hover {
    transform: translateY(-5px);
}

.partner-logo { filter: grayscale(100%); opacity: 0.5; transition: 0.4s; max-height: 70px; object-fit: contain; }
.partner-logo:hover { filter: grayscale(0%); opacity: 1; transform: scale(1.05); }

/* Multi-Level Dropdown CSS */
.dropdown-submenu {
    position: relative;
}
.dropdown-submenu .dropdown-menu {
    top: 0;
    left: 100%;
    margin-top: -1px;
    display: none;
    border-radius: 12px;
    border: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.dropdown-menu {
    border-radius: 12px;
    border: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 10px;
}
.dropdown-item {
    border-radius: 8px;
    padding: 8px 15px;
    transition: all 0.2s;
    font-weight: 500;
}
.dropdown-item:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}
.dropdown-submenu:hover > .dropdown-menu {
    display: block;
}

/* Utilities */
.rounded-4 { border-radius: 1rem !important; }
.rounded-5 { border-radius: 1.5rem !important; }
.shadow-soft { box-shadow: 0 15px 35px rgba(0,0,0,0.05) !important; }
.hover-lift { transition: transform 0.3s ease, box-shadow 0.3s ease; }
.hover-lift:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }

/* Global Flash Messages */
.alert-flash {
    position: fixed;
    top: 190px;
    right: 20px;
    z-index: 9999;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    max-width: 380px;
    animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    border-left: 4px solid var(--primary-color);
}
@keyframes slideInRight {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
.alert-flash-success { border-left-color: #10b981; }
.alert-flash-info { border-left-color: #3b82f6; }
.alert-flash-warning { border-left-color: #f59e0b; }
.alert-flash-error { border-left-color: #ef4444; }

.alert-flash-icon { font-size: 1.5rem; }
.alert-flash-success .alert-flash-icon { color: #10b981; }
.alert-flash-info .alert-flash-icon { color: #3b82f6; }
.alert-flash-warning .alert-flash-icon { color: #f59e0b; }
.alert-flash-error .alert-flash-icon { color: #ef4444; }

.alert-flash-body { flex: 1; }
.alert-flash-body strong { display: block; margin-bottom: 3px; font-size: 1rem; color: #1e293b; }
.alert-flash-body p { margin: 0; font-size: 0.85rem; color: #64748b; line-height: 1.4; }

.alert-flash-close {
    background: none;
    border: none;
    color: #cbd5e1;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s;
    padding: 0;
    margin-top: -2px;
}
.alert-flash-close:hover { color: #64748b; }

@media (max-width: 991px) {
    .alert-flash { top: 90px; right: 10px; left: 10px; max-width: none; }
}