/* ===================================
   LAYOUT STYLES
   Page structure, containers, and major layout components
   =================================== */

/* Container System */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Header Layout */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-slow);
}

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

/* Hero Section Layout */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
}

.hero-content {
    max-width: 800px;
    padding: 0 var(--space-xl);
    position: relative;
    z-index: 2;
}

/* Section Layout */
.projects-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
    position: relative;
}

.private-section {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    padding: var(--space-4xl) 0;
    display: none;
    position: relative;
}

.private-section.show {
    display: block;
    animation: fadeInUp 0.6s ease-out;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.private-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

/* Grid Systems */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

/* Auth Controls Layout */
.auth-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--glass-bg);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
}

/* Scroll Indicator Layout */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    cursor: pointer;
}

/* Background Animation Container */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    opacity: 0.4;
}