/* 
 * buildables - Main Stylesheet
 * Modern CSS for the fellowship community platform
 */

/* CSS Custom Properties (Variables) */
:root {
    --c-bg: #0A0A0A;
    --c-surface: #141414;
    --c-border: #262626;
    --c-text-high: #F5F5F5;
    --c-text-mid: #A3A3A3;
    --c-text-low: #737373;
    --c-primary-blue: #0085FF;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* Light Mode Theme */
.light-mode {
    --c-bg: #FFFFFF;
    --c-surface: #F9FAFB;
    --c-border: #E2E8F0;
    --c-text-high: #111827;
    --c-text-mid: #4A5568;
    --c-text-low: #718096;
}

/* Theme-Based Logo Display */
.logo-light,
.logo-dark {
    display: none;
}

/* When body has light-mode class */
body.light-mode .logo-light {
    display: inline;
}

body.light-mode .logo-dark {
    display: none;
}

/* When body does not have light-mode class */
body:not(.light-mode) .logo-dark {
    display: inline;
}

body:not(.light-mode) .logo-light {
    display: none;
}

/* Base Styles */
body {
    font-family: var(--font-sans);
    background-color: var(--c-bg);
    color: var(--c-text-mid);
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Background Patterns */
.background-layer {
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    opacity: 0; 
    z-index: -1;
    transition: opacity 0.3s ease;
}

body.bg-dots .background-layer {
    background-image: radial-gradient(var(--c-border) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
}

body.bg-grid .background-layer {
    background-image: linear-gradient(var(--c-border) 1px, transparent 1px), 
                      linear-gradient(to right, var(--c-border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.2;
}

/* Page Navigation System */
.page { 
    display: none; 
}

.page.active { 
    display: block; 
    animation: fadeIn 0.5s ease-in-out; 
}

@keyframes fadeIn { 
    from { opacity: 0; } 
    to { opacity: 1; } 
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Navigation Links */
.nav-link { 
    font-weight: 500; 
}

.nav-link.active { 
    color: var(--c-primary-blue); 
    font-weight: 600; 
}

/* Button Components */
.btn {
    font-family: var(--font-sans); 
    font-size: 1rem; 
    font-weight: 600; 
    border-radius: 8px;
    cursor: pointer; 
    transition: all 0.2s ease; 
    text-decoration: none; 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
}

.btn-primary { 
    color: #fff; 
    background: var(--c-primary-blue); 
    border: 1px solid var(--c-primary-blue); 
}

.btn-primary:hover { 
    filter: brightness(1.15); 
    transform: translateY(-2px); 
    box-shadow: 0 4px 12px rgba(0, 133, 255, 0.2); 
}

/* Card Components */
.card {
    background-color: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 1rem;
    transition: all 0.2s ease-in-out;
    display: flex;
    flex-direction: column;
}

.card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 10px 20px rgba(0,0,0,0.2); 
}

/* Form Elements */
.form-input {
    background-color: var(--c-surface); 
    border: 1px solid var(--c-border); 
    border-radius: 8px; 
    padding: 12px 16px; 
    width: 100%;
    transition: border-color 0.2s ease; 
    color: var(--c-text-high);
}

.form-input:focus { 
    outline: none; 
    border-color: var(--c-primary-blue); 
}

/* Mobile Menu Animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Hamburger to X animation */
.hamburger-top, 
.hamburger-middle, 
.hamburger-bottom { 
    transition: all 0.3s; 
}

.hamburger.open .hamburger-top { 
    transform: rotate(45deg) translateY(6px) translateX(6px); 
}

.hamburger.open .hamburger-middle { 
    opacity: 0; 
}

.hamburger.open .hamburger-bottom { 
    transform: rotate(-45deg) translateY(-6px) translateX(6px); 
}

/* Theme-aware Text Elements */
.themed-screenshot-text {
    color: var(--c-text-high);
}

/* Log Display Components */
.log-line {
    color: var(--c-text-high);
}

.log-line.warn { 
    color: #FBBF24; 
}

.log-line.error { 
    color: #F87171; 
}

/* Modal Styles */
.modal-overlay {
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--c-surface);
    border: 1px solid var(--c-border);
    color: var(--c-text-high);
}

.modal-content p {
    color: var(--c-text-mid);
}

.modal-btn-secondary {
    background-color: var(--c-border);
    color: var(--c-text-high);
}

.modal-btn-secondary:hover {
    background-color: var(--c-text-low);
}