/* ==========================================================================
   FINANCE Magazin - Base Styles (Complete Version)
   ========================================================================== */

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    /* Colors */
    --color-primary: #002655;
    --color-primary-dark: #001a3d;
    --color-accent: #e3000f;
    --color-accent-hover: #c00010;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-text: #374151;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-surface: #f9fafb;
    
    /* Grays */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-border: #e5e7eb;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* Font Sizes (alternative naming) */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Border Radius */
    --radius: 0.375rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition: 0.2s ease;
    --transition-normal: 0.2s ease;
    --transition-fast: 0.15s ease;
    
    /* Layout */
    --header-height: 64px;
    --container-max: 1200px;
}

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

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

body {
    margin: 0;
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background: var(--color-gray-50);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

p {
    margin: 0;
}

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

button {
    font-family: inherit;
}

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

/* ==========================================================================
   Layout
   ========================================================================== */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.site-logo img {
    height: 24px;
    width: auto;
}

.header-nav {
    display: flex;
    gap: var(--space-1);
}

.nav-link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-login,
.btn-profile {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.btn-login:hover,
.btn-profile:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(0, 38, 85, 0.05);
}

/* Header Icon Buttons */
.header-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-gray-600);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.header-icon-btn:hover {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

u-logout-button.header-icon-btn {
    padding: 0;
}

/* Header Auth State */
.header-auth-icons {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-gray-500);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.btn-logout:hover {
    background: var(--color-gray-100);
    color: var(--color-accent);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    font-family: inherit;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

.btn-outline-subtle {
    background: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-600);
}

.btn-outline-subtle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 38, 85, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

.error-message {
    font-size: var(--text-sm);
    color: var(--color-accent);
    margin-top: var(--space-1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-10) 0 var(--space-6);
    margin-top: auto;
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6) var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-brand {
    max-width: 300px;
}

/* Text-based FINANCE logo */
.footer-logo-text {
    margin-bottom: var(--space-3);
}

.footer-logo-finance {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-white);
    display: inline-block;
    line-height: 1;
    position: relative;
    padding-bottom: var(--space-2);
}

.footer-logo-finance::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
}

/* Image-based logo fallback */
.footer-logo {
    display: block;
    margin-bottom: var(--space-3);
}

.footer-logo img {
    height: 24px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
}

/* Footer Navigation Groups */
.footer-nav {
    display: flex;
    gap: var(--space-12);
}

.footer-nav-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-nav-group h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin: 0 0 var(--space-2);
}

.footer-nav-group a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-nav-group a:hover {
    color: var(--color-white);
}

.footer-bottom {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-6) var(--space-6) 0;
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* ==========================================================================
   Flash Message (Global)
   ========================================================================== */
.flash-message {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-4) var(--space-6);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .header-inner {
        padding: 0 var(--space-4);
    }
    
    .header-nav {
        display: none;
    }
    
    .container {
        padding: 0 var(--space-4);
    }
    
    .footer-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 0 var(--space-4) var(--space-8);
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: var(--space-6);
    }
    
    .footer-nav-group {
        align-items: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }
    
    .footer-bottom {
        padding: var(--space-6) var(--space-4) 0;
    }
}