/* Layout and Grid System */

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-8);
    }
}

/* CSS Grid System */
.grid {
    display: grid;
    gap: var(--space-6);
}

.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--12 {
    grid-template-columns: repeat(12, 1fr);
}

@media (max-width: 768px) {
    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

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

.flex--center {
    align-items: center;
    justify-content: center;
}

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

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

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

.flex--gap {
    gap: var(--space-4);
}

.flex--gap-sm {
    gap: var(--space-2);
}

.flex--gap-lg {
    gap: var(--space-6);
}

/* Header */
.header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.95);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    min-height: 64px;
}

.header__logo .logo {
    height: 32px;
    width: auto;
}

.header__nav {
    display: flex;
    align-items: center;
}

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

.header__mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.header__mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--ink);
    transition: var(--transition-fast);
}

@media (max-width: 768px) {
    .header__mobile-toggle {
        display: flex;
    }
    
    .header__ctas {
        display: none;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--grad-hero);
    color: #fff;
    overflow: hidden;
}

.hero__background {
    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 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23e2e8f0" stroke-width="1" opacity="0.3"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 30, 50, 0.3);
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-6);
    color: #fff;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
}

/* Section spacing */
.section {
    padding: var(--space-16) 0;
}

.section--sm {
    padding: var(--space-12) 0;
}

.section--lg {
    padding: var(--space-20) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-12);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

/* How It Works Section */
.how-it-works {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
}

.how-it-works__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    max-width: 1000px;
    margin: 0 auto;
}

.how-it-works__item {
    text-align: center;
    padding: var(--space-8);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.how-it-works__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.how-it-works__icon {
    margin-bottom: var(--space-6);
    display: flex;
    justify-content: center;
}

.how-it-works__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.how-it-works__description {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: var(--line-height-relaxed);
}

.how-it-works__link {
    color: var(--brand);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.how-it-works__link:hover {
    color: var(--ink);
}

/* Partners Section */
.partners {
    padding: var(--space-16) 0;
    background: var(--bg-primary);
}

.partners__slider {
    overflow: hidden;
    position: relative;
}

.partners__track {
    display: flex;
    gap: var(--space-8);
    animation: scroll 30s linear infinite;
    scroll-snap-type: x mandatory;
}

.partners__track:hover {
    animation-play-state: paused;
}

.partners__item {
    flex-shrink: 0;
    scroll-snap-align: start;
}

.partner-logo {
    padding: var(--space-6) var(--space-8);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    white-space: nowrap;
    border: 1px solid var(--border);
    transition: all var(--transition-fast);
}

.partner-logo:hover {
    background: var(--brand);
    color: var(--text-inverse);
    transform: translateY(-2px);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Footer */
.footer {
    background: var(--color-navy);
    color: #fff;
    padding: var(--space-16) 0 var(--space-8);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--text-inverse);
}

.footer__contact p {
    margin-bottom: var(--space-2);
    color: var(--text-inverse);
    opacity: 0.9;
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer__nav a {
    color: #cfe8ff;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.footer__nav a:hover {
    opacity: 1;
}

.footer__description {
    color: var(--text-inverse);
    opacity: 0.9;
    line-height: var(--line-height-relaxed);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-6);
    text-align: center;
}

.footer__bottom p {
    color: var(--text-inverse);
    opacity: 0.8;
    margin: 0;
}

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

.page__main {
    flex: 1;
    padding: var(--space-8) 0;
}

.page__header {
    background: var(--bg-secondary);
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--border);
}

.page__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
}

.page__subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

/* Two-pane layout for messaging */
.two-pane {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-6);
    height: calc(100vh - 200px);
    min-height: 600px;
}

.two-pane__sidebar {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    overflow-y: auto;
}

.two-pane__main {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    overflow-y: auto;
    border: 1px solid var(--border);
}

@media (max-width: 768px) {
    .two-pane {
        grid-template-columns: 1fr;
        height: auto;
        min-height: auto;
    }
    
    .two-pane__sidebar {
        order: 2;
    }
    
    .two-pane__main {
        order: 1;
        min-height: 400px;
    }
}