/* ===========================================
   CSS Variables - Color Scheme
   =========================================== */
:root {
    --color-primary: #ffffff;
    --color-text: #1E64C8;
    --color-text-light: #4B84D1;
    --color-accent: #ff6b00;
    --color-accent-hover: #e55f00;
    --color-accent-light: #fff3e6;
    --color-border: #e0e0e0;
    --color-background-alt: #f8f8f8;
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(to bottom, #ffffff, #f5dabd);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: var(--line-height);
    min-height: 100vh;
}

/* ===========================================
   Typography
   =========================================== */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

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

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

/* ===========================================
   Layout
   =========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* ===========================================
   Header & Navigation
   =========================================== */
header {
    background-color: var(--color-primary);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo span {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent);
    text-decoration: none;
}

/* Language Dropdown in Navigation */
.nav-lang-dropdown {
    position: relative;
    display: flex;
    align-items: center;
}

.lang-toggle {
    background: transparent;
    border: none;
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition);
}

.lang-toggle:hover {
    color: var(--color-accent);
}

.lang-arrow {
    font-size: 0.65rem;
    transition: transform 0.3s ease;
}

.nav-lang-dropdown.open .lang-arrow {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    list-style: none;
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.nav-lang-dropdown.open .lang-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-menu li {
    width: 100%;
}

.lang-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: none;
}

.lang-menu a:hover {
    background-color: var(--color-background-alt);
    color: var(--color-accent);
}

.lang-menu a.lang-active {
    color: var(--color-accent);
    font-weight: 600;
}

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger-line:not(:last-child) {
    margin-bottom: 5px;
}

/* Hamburger animation when active */
.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ===========================================
   Buttons
   =========================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-primary);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
    text-decoration: none;
}

/* ===========================================
   Cards
   =========================================== */
.card {
    background-color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-title {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.card-accent {
    border-top: 4px solid var(--color-accent);
}

/* ===========================================
   Forms
   =========================================== */
input, textarea, select {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-primary);
    color: var(--color-text);
    transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-text);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

/* ===========================================
   Hero Section
   =========================================== */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero h1 span {
    color: var(--color-accent);
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ===========================================
   Footer
   =========================================== */
footer {
    background-color: var(--color-text);
    color: #ffffff;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

footer p {
    color: #ffffff;
}

footer a {
    color: var(--color-accent);
}

footer a:hover {
    color: var(--color-accent-hover);
}

/* ===========================================
   Utilities
   =========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-accent { color: var(--color-accent); }
.bg-accent { background-color: var(--color-accent); }
.bg-accent-light { background-color: var(--color-accent-light); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.flex { display: flex; }
.flex-center { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
}
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

/* ===========================================
   Responsive Design
   =========================================== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    /* Show hamburger button */
    .hamburger {
        display: flex;
    }
    
    /* Mobile navigation menu */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-primary);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px var(--spacing-md) var(--spacing-md);
        gap: 0;
        transition: right 0.3s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
    }
    
    /* Language dropdown in mobile menu */
    .nav-lang-dropdown {
        order: -1;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        border-bottom: 2px solid var(--color-accent);
        margin-bottom: var(--spacing-sm);
        padding-bottom: var(--spacing-sm);
    }
    
    .lang-toggle {
        width: 100%;
        justify-content: space-between;
        padding: var(--spacing-sm);
    }
    
    .lang-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background-color: transparent;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        width: 100%;
    }
    
    .nav-lang-dropdown.open .lang-menu {
        max-height: 200px;
    }
    
    .lang-menu a {
        padding-left: var(--spacing-md);
    }
    
    /* Overlay when menu is open */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }
    
    .nav-overlay.active {
        display: block;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
    }
}