/* Layout Styles */

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

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

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

/* App Layout */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-6) 0;
}

/* Header */
.app-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
    gap: var(--spacing-4);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.logo-img {
    width: 2rem;
    height: 2rem;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--spacing-2);
}

.nav-btn {
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    background: transparent;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.nav-btn:hover,
.nav-btn:focus {
    color: var(--color-black);
    background: var(--color-gray-100);
}

.nav-btn.active {
    color: var(--color-white);
    background: var(--color-black);
}

/* View Management */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* View Header */
.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-8);
    gap: var(--spacing-4);
}

.view-header h2 {
    font-size: var(--font-size-3xl);
    color: var(--color-black);
}

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

/* Grid Systems */
.form-grid {
    display: grid;
    gap: var(--spacing-4);
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .form-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Builder Layout */
.builder-layout {
    display: grid;
    gap: var(--spacing-6);
    grid-template-columns: 1fr;
}

@media (min-width: 900px) {
    .builder-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.builder-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.builder-preview {
    position: relative;
}

@media (min-width: 900px) {
    .builder-preview {
        position: sticky;
        top: calc(4rem + var(--spacing-6));
        height: fit-content;
    }
}

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

.inline-flex {
    display: inline-flex;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

.flex-1 {
    flex: 1 1 0%;
}

.flex-auto {
    flex: 1 1 auto;
}

.flex-none {
    flex: none;
}

.flex-grow {
    flex-grow: 1;
}

.flex-shrink {
    flex-shrink: 1;
}

/* Gap Utilities */
.gap-1 {
    gap: var(--spacing-1);
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.gap-8 {
    gap: var(--spacing-8);
}

/* Position Utilities */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

/* Responsive Utilities */
@media (max-width: 639px) {
    .sm\:hidden {
        display: none;
    }
}

@media (min-width: 640px) {
    .sm\:block {
        display: block;
    }
    
    .sm\:flex {
        display: flex;
    }
    
    .sm\:grid {
        display: grid;
    }
}

@media (max-width: 899px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
}

@media (min-width: 900px) {
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
}

/* Width & Height */
.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.min-h-screen {
    min-height: 100vh;
}

/* Overflow */
.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.overflow-scroll {
    overflow: scroll;
}

/* Z-Index */
.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-30 {
    z-index: 30;
}

.z-40 {
    z-index: 40;
}

.z-50 {
    z-index: 50;
}