/* Buypolar Capital - Layout CSS */
/* Header, Navigation, and Main Layout Styles */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
    height: 65px;
    padding-top: 12px; /* Account for progress bar */
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-light);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: calc(100% - 3px); /* Subtract progress bar height */
    padding: 0 var(--spacing-md);
    max-width: var(--container-xl);
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    padding: var(--spacing-sm);
    margin-right: var(--spacing-lg);
    transition: color var(--transition-fast);
}

/* Removed hover effect to keep logo black at all times */

.logo-text {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.logo-text-container {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

/* Removed hover effect to keep logo black at all times */

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xxl);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    letter-spacing: 0.3px;
}

.nav-link:hover {
    color: var(--accent-blue);
    background: rgba(33, 150, 243, 0.1);
}

.nav-link.active {
    color: var(--accent-blue);
    background: rgba(33, 150, 243, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.nav-toggle:hover {
    background: var(--bg-secondary);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Main Layout */
.main {
    margin-top: 65px;
    min-height: calc(100vh - 65px);
}

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

.section-hero {
    padding: var(--spacing-xxxl) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.section-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e0e0e0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.section-content {
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-auto-fill {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* Flexbox Layouts */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.justify-start {
    justify-content: flex-start;
}

.justify-end {
    justify-content: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.justify-evenly {
    justify-content: space-evenly;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.items-center {
    align-items: center;
}

.items-stretch {
    align-items: stretch;
}

.items-baseline {
    align-items: baseline;
}

/* Spacing Utilities */
.gap-0 { gap: 0; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

/* Responsive Layout */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-medium);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: var(--z-dropdown);
    }

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

    .nav-toggle {
        display: flex;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .section-subtitle {
        font-size: var(--font-size-lg);
    }

    .flex-row {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-sm);
    }

    .nav-logo {
        font-size: var(--font-size-base);
        margin-right: var(--spacing-md);
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .logo-subtitle {
        font-size: 0.6rem;
    }

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

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

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }
}

/* Container Variations */
.container-sm {
    max-width: var(--container-sm);
}

.container-md {
    max-width: var(--container-md);
}

.container-lg {
    max-width: var(--container-lg);
}

.container-xl {
    max-width: var(--container-xl);
}

.container-2xl {
    max-width: var(--container-2xl);
}

/* Dark Mode Adjustments */
@media (prefers-color-scheme: dark) {
    .header {
        background: rgba(18, 18, 18, 0.95);
        border-bottom-color: var(--border-light);
    }

    .header.scrolled {
        background: rgba(18, 18, 18, 0.98);
    }

    .section-hero {
        background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    }

    .section-hero::before {
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23404040" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    }
}