/* ====================================
   CSS VARIABLES & DESIGN TOKENS
   ==================================== */
:root {
    /* Colors */
    --color-primary: #1a3a5c;
    --color-primary-dark: #0f2440;
    --color-accent: #1e5a8e;
    --color-border-accent: #8b1e3f;
    --color-white: #ffffff;
    --color-text-dark: #2d3748;
    --color-text-light: #f8f9fa;
    --color-grey-light: #f5f7fa;
    --color-grey-medium: #e0e4e8;
    --color-divider: rgba(255, 255, 255, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-premium: 0 8px 32px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-premium: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-header: 1000;
    --z-mobile-menu: 1100;
    --z-overlay: 1050;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text-dark);
    overflow-x: hidden;
    background: #0a1628;
}

body.menu-open {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ====================================
   HEADER - TOP ROW (Logo)
   ==================================== */
.header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: rgb(255, 255, 255);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.header__top {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.header__top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(139, 30, 63, 0.3) 20%, 
        rgba(139, 30, 63, 0.6) 50%, 
        rgba(139, 30, 63, 0.3) 80%, 
        transparent 100%);
}

.header__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 85px;
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-smooth);
    position: relative;
}

.header__logo::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 8px;
    
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.header__logo:hover::before {
    opacity: 1;
}

.header__logo:hover {
    transform: translateY(-2px);
}

.header__logo-img {
    height: 60px;
    width: auto;
   
    transition: filter var(--transition-smooth);
}



.header__logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 0.5px;
}

/* Hamburger (Mobile Only) */
.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    z-index: calc(var(--z-mobile-menu) + 10);
    position: relative;
}

.header__hamburger::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: rgba(139, 30, 63, 0.1);
    border-radius: 8px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.header__hamburger:hover::before {
    opacity: 1;
}

.header__hamburger-line {
    width: 28px;
    height: 3px;
    background: var(--color-border-accent);
    border-radius: 2px;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Hamburger Active State */
.header__hamburger.active .header__hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
    background: var(--color-border-accent);
}

.header__hamburger.active .header__hamburger-line:nth-child(2) {
    opacity: 0;
}

.header__hamburger.active .header__hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
    background: var(--color-border-accent);
}

/* ====================================
   PRIMARY NAVIGATION BAR
   ==================================== */
.nav {
    background: linear-gradient(135deg, 
        rgba(26, 58, 92, 0.95) 0%, 
        rgba(15, 36, 64, 0.98) 50%,
        rgba(26, 58, 92, 0.95) 100%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
}

.nav::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(139, 30, 63, 0.05), transparent 70%);
    pointer-events: none;
}

.nav__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0;
    position: relative;
}

/* CTA Button */
.nav__cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-border-accent) 0%, #6d1830 100%);
    color: var(--color-white);
    padding: 1rem 1.75rem;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    margin-right: var(--spacing-md);
    transition: all var(--transition-smooth);
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(139, 30, 63, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.nav__cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.nav__cta:hover::before {
    left: 100%;
}

.nav__cta:hover {
    background: linear-gradient(135deg, #a52447 0%, #8b1e3f 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(139, 30, 63, 0.6),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.nav__cta-icon {
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Navigation List */
.nav__list {
    display: flex;
    list-style: none;
    flex: 1;
    height: 65px;
}

/* Navigation Items */
.nav__item {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Navigation Links with Corner Border Effect */
.nav__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.8125rem;
    letter-spacing: 0.8px;
    padding: 0 var(--spacing-sm);
    transition: all var(--transition-smooth);
    text-align: center;
    position: relative;
    background: transparent;
}

/* Corner Border Animation */
.nav__link::before,
.nav__link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-color: transparent;
    transition: all var(--transition-premium);
    opacity: 0;
}

/* Top-left corner */
.nav__link::before {
    top: 8px;
    left: 8px;
    border-width: 2px 0 0 2px;
}

/* Bottom-right corner */
.nav__link::after {
    bottom: 8px;
    right: 8px;
    border-width: 0 2px 2px 0;
}

/* Hover state - animate corners */
.nav__link:hover::before,
.nav__link:hover::after {
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border-color: var(--color-border-accent);
    opacity: 1;
}

.nav__link:hover {
    background: linear-gradient(135deg, 
        rgba(139, 30, 63, 0.08) 0%, 
        rgba(139, 30, 63, 0.12) 50%,
        rgba(139, 30, 63, 0.08) 100%);
    color: #ffffff;
    text-shadow: 0 0 12px rgba(139, 30, 63, 0.5);
}

/* Inner glow effect on hover */
.nav__item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(139, 30, 63, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.nav__item:hover::after {
    opacity: 1;
}

/* ====================================
   DROPDOWN MENUS (Desktop)
   ==================================== */
.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, 
        rgba(26, 58, 92, 0.98) 0%, 
        rgba(112, 3, 3, 0.98) 100%);
    backdrop-filter: blur(16px);
    border-radius: 8px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(139, 30, 63, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    min-width: 260px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    transition: opacity var(--transition-smooth), 
                transform var(--transition-smooth),
                visibility var(--transition-smooth);
    z-index: 100;
    margin-top: 0.5rem;
    overflow: hidden;
}

.nav__dropdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent,
        var(--color-border-accent),
        transparent);
}

.nav__item--dropdown:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav__dropdown-content {
    padding: 0.75rem 0;
}

.nav__dropdown-link {
    display: block;
    padding: 0.875rem var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

.nav__dropdown-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--color-border-accent);
    transition: width var(--transition-smooth);
    box-shadow: 0 0 8px var(--color-border-accent);
}

.nav__dropdown-link:hover {
    background: linear-gradient(90deg, 
        rgba(139, 30, 63, 0.15) 0%,
        rgba(139, 30, 63, 0.05) 100%);
    padding-left: calc(var(--spacing-md) + 12px);
    color: #ffffff;
}

.nav__dropdown-link:hover::before {
    width: 8px;
    left: var(--spacing-md);
}

.nav__dropdown-divider {
    height: 1px;
    background: linear-gradient(90deg, 
        transparent,
        rgba(139, 30, 63, 0.3),
        transparent);
    margin: var(--spacing-xs) var(--spacing-md);
}

/* ====================================
   MOBILE MENU (Full Screen)
   ==================================== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 380px;
    height: 100vh;
    background: linear-gradient(180deg, 
        rgba(15, 36, 64, 0.98) 0%, 
        rgba(10, 22, 40, 0.98) 100%);
    backdrop-filter: blur(20px);
    z-index: 2000;
    transition: right var(--transition-smooth);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
}

.mobile-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg,
        var(--color-border-accent),
        transparent 30%,
        transparent 70%,
        var(--color-border-accent));
}

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

.mobile-menu__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

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

.mobile-menu__close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: rgba(139, 30, 63, 0.2);
    border: 2px solid var(--color-border-accent);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-smooth);
    z-index: 10;
    box-shadow: 0 4px 16px rgba(139, 30, 63, 0.4);
}

.mobile-menu__close:hover {
    background: var(--color-border-accent);
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 6px 24px rgba(139, 30, 63, 0.6);
}

.mobile-menu__content {
    padding: 5rem 1.5rem 2rem;
}

.mobile-menu__cta {
    background: linear-gradient(135deg, var(--color-border-accent) 0%, #6d1830 100%);
    color: var(--color-white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    box-shadow: 0 6px 20px rgba(139, 30, 63, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.mobile-menu__cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.mobile-menu__cta:active::before {
    transform: translateX(100%);
}

.mobile-menu__cta:active {
    transform: scale(0.98);
    box-shadow: 0 4px 16px rgba(139, 30, 63, 0.6);
}

.mobile-menu__cta-icon {
    width: 20px;
    height: 20px;
}

.mobile-menu__section {
    margin-bottom: 1.5rem;
}

.mobile-menu__section-title {
    color: var(--color-border-accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(139, 30, 63, 0.3);
    text-shadow: 0 0 12px rgba(139, 30, 63, 0.5);
}

.mobile-menu__list {
    list-style: none;
}

.mobile-menu__item {
    margin-bottom: 0.25rem;
}

.mobile-menu__link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 0.875rem 1rem;
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    border-radius: 6px;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.mobile-menu__link:hover {
    background: linear-gradient(90deg, 
        rgba(139, 30, 63, 0.15),
        rgba(139, 30, 63, 0.05));
    border-left-color: var(--color-border-accent);
    color: #ffffff;
    padding-left: 1.25rem;
}

.mobile-menu__link:active {
    transform: scale(0.98);
}

/* Mobile Menu Accordion Styles */
.mobile-menu__accordion-toggle {
    width: 100%;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.9);
    padding: 0.875rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    cursor: pointer;
    border-radius: 6px;
    transition: all var(--transition-fast);
    text-align: left;
    border-left: 3px solid transparent;
}

.mobile-menu__accordion-toggle:hover {
    background: linear-gradient(90deg, 
        rgba(139, 30, 63, 0.15),
        rgba(139, 30, 63, 0.05));
    border-left-color: var(--color-border-accent);
    color: #ffffff;
}

.mobile-menu__accordion-toggle:active {
    transform: scale(0.98);
}

.mobile-menu__chevron {
    transition: transform var(--transition-fast);
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 0 4px rgba(139, 30, 63, 0.5));
}

.mobile-menu__accordion-toggle[aria-expanded="true"] .mobile-menu__chevron {
    transform: rotate(180deg);
}

.mobile-menu__accordion-toggle[aria-expanded="true"] {
    background: linear-gradient(90deg, 
        rgba(139, 30, 63, 0.2),
        rgba(139, 30, 63, 0.08));
    border-left-color: var(--color-border-accent);
    color: #ffffff;
}

.mobile-menu__accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-menu__accordion-toggle[aria-expanded="true"] + .mobile-menu__accordion-content {
    max-height: 500px;
}

.mobile-menu__accordion-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 0.75rem 1rem 0.75rem 2rem;
    display: block;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    border-radius: 6px;
    margin: 0.125rem 0;
    position: relative;
}

.mobile-menu__accordion-link::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-border-accent);
    border-radius: 50%;
    opacity: 0.5;
    box-shadow: 0 0 6px var(--color-border-accent);
}

.mobile-menu__accordion-link:hover {
    background: linear-gradient(90deg, 
        rgba(139, 30, 63, 0.1),
        transparent);
    color: #ffffff;
    padding-left: 2.25rem;
}

.mobile-menu__accordion-link:hover::before {
    opacity: 1;
}

.mobile-menu__accordion-link:active {
    transform: scale(0.98);
}

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

/* Tablet & Below */
@media (max-width: 1024px) {
    .nav {
        display: none;
    }
    
    .header__hamburger {
        display: flex;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .header__container {
        height: 75px;
        padding: 0 var(--spacing-sm);
    }
    
    .header__logo-img {
        height: 50px;
    }
    
    .header__logo-text {
        font-size: 1.125rem;
    }
    
    .mobile-menu {
        max-width: 100%;
    }
    
    .mobile-menu__content {
        padding: 4.5rem 1.25rem 2rem;
    }
    
    .mobile-menu__close {
        top: 1rem;
        right: 1rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .header__container {
        height: 65px;
    }
    
    .header__logo-img {
        height: 45px;
    }
    
    .header__logo-text {
        display: none;
    }
    
    .mobile-menu__content {
        padding: 4rem 1rem 1.5rem;
    }
    
    .mobile-menu__cta {
        padding: 0.875rem 1.25rem;
        font-size: 0.8125rem;
    }
    
    .mobile-menu__link,
    .mobile-menu__accordion-toggle {
        padding: 0.75rem 0.875rem;
        font-size: 0.875rem;
    }
    
    .mobile-menu__accordion-link {
        padding: 0.625rem 0.875rem 0.625rem 1.75rem;
        font-size: 0.8125rem;
    }
}

/* Smooth scroll reveal animation */
@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav__item {
    animation: slideInFromTop 0.5s ease backwards;
}

.nav__item:nth-child(1) { animation-delay: 0.05s; }
.nav__item:nth-child(2) { animation-delay: 0.1s; }
.nav__item:nth-child(3) { animation-delay: 0.15s; }
.nav__item:nth-child(4) { animation-delay: 0.2s; }
.nav__item:nth-child(5) { animation-delay: 0.25s; }
.nav__item:nth-child(6) { animation-delay: 0.3s; }
.nav__item:nth-child(7) { animation-delay: 0.35s; }
.nav__item:nth-child(8) { animation-delay: 0.4s; }