/**
 * ============================================
 * DOCSEN  - Layout CSS
 * Page structure, grid, containers
 * ============================================
 */

/* ============================================
   CONTAINER
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

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

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

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

/* ============================================
   PAGE LAYOUT
   ============================================ */
.page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.page__header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: var(--bg-primary);
}

.page__main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.page__footer {
    margin-top: auto;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    padding: var(--space-4) 0;
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: var(--space-3) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.header__logo:hover {
    transform: scale(1.02);
}

.header__logo img {
    height: 48px;
    width: auto;
}

.header__logo-icon {
    width: 40px;
    height: 40px;
    color: #1b10b9;
}

.header__logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: #0f172a;
    letter-spacing: -0.5px;
}

.header__logo-text span {
    color: #1b10b9;
}

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

.header__back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-target);
    height: var(--touch-target);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.header__back-btn:hover,
.header__back-btn:focus {
    background-color: #f1f5f9;
    transform: translateX(-2px);
}

.header__back-btn svg {
    width: 24px;
    height: 24px;
    color: #334155;
}

.header__help-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 18px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #475569;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    cursor: pointer;
}

.header__help-btn:hover,
.header__help-btn:focus {
    background: white;
    border-color: #1b10b9;
    color: #1b10b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 15, 156, 0.15);
}

.header__help-btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.header__help-btn:hover svg {
    transform: rotate(15deg);
}

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

.header__nav .header__auth-btns {
    margin-right: var(--space-2);
}

.header__auth-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    color: #334155;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.header__auth-btn::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #1b10b9;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.header__auth-btn:hover {
    color: #1b10b9;
}

.header__auth-btn:hover::after {
    width: 60%;
}

.header__auth-btn--primary {
    background: linear-gradient(135deg, #1b10b9 0%, #043796 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(27, 16, 185, 0.25);
    border: none;
}

.header__auth-btn--primary::after {
    display: none;
}

.header__auth-btn--primary:hover {
    background: linear-gradient(135deg, #1a0fa3 0%, #032b7a 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(27, 16, 185, 0.35);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-8) 0 var(--space-6);
    background-color: var(--color-gray-10);
    color: var(--text-gray-800);
}

.footer__container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer__logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary-subtle);
}

.footer__logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.footer__logo-text span {
    color: var(--color-primary-light);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus {
    color: var(--color-primary);
}

.footer__link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.footer__divider {
    height: 1px;
    background-color: var(--color-gray-700);
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.footer__tagline {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ============================================
   SECTION
   ============================================ */
.section {
    padding: var(--space-8) 0;
}

.section--sm {
    padding: var(--space-6) 0;
}

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

.section--hero {
    padding: var(--space-6) 0 var(--space-8);
    background: linear-gradient(135deg, var(--color-primary-subtle) 0%, var(--bg-primary) 100%);
}

.section--gray {
    background-color: var(--bg-secondary);
}

.section__header {
    margin-bottom: var(--space-6);
}

.section__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-2);
}

.section__subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-6);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.hero__badge svg {
    width: 16px;
    height: 16px;
}

.hero__content {
    max-width: 600px;
}

.hero__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.hero__title span {
    color: var(--color-primary);
}

/* HyperText effect */
.hero__title .hyper-text {
    display: inline-block;
    cursor: pointer;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    letter-spacing: -0.5px;
    position: relative;
    color: var(--color-primary);
    transition: all 0.3s ease;
    text-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
}

.hero__title .hyper-text:hover {
    color: #1d4ed8;
    text-shadow: 
        0 0 30px rgba(37, 99, 235, 0.6),
        0 0 60px rgba(37, 99, 235, 0.4),
        0 0 90px rgba(37, 99, 235, 0.2);
    transform: scale(1.02);
}

.hero__description {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.hero__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.hero__illustration {
    max-width: 280px;
    margin-top: var(--space-4);
}

.hero__illustration svg {
    width: 100%;
    height: auto;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */
.grid {
    display: grid;
    gap: var(--space-4);
}

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

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

.grid--4-cols {
    grid-template-columns: repeat(2, 1fr);
}

/* ============================================
   FLEX LAYOUTS
   ============================================ */
.flex-row {
    display: flex;
    flex-direction: row;
}

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

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

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

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

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

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

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

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ============================================
   SPACING UTILITIES
   ============================================ */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.pt-1 { padding-top: var(--space-1); }
.pt-2 { padding-top: var(--space-2); }
.pt-3 { padding-top: var(--space-3); }
.pt-4 { padding-top: var(--space-4); }
.pt-6 { padding-top: var(--space-6); }
.pt-8 { padding-top: var(--space-8); }

.pb-1 { padding-bottom: var(--space-1); }
.pb-2 { padding-bottom: var(--space-2); }
.pb-3 { padding-bottom: var(--space-3); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-6 { padding-bottom: var(--space-6); }
.pb-8 { padding-bottom: var(--space-8); }

/* ============================================
   PAGE-SPECIFIC LAYOUTS
   ============================================ */

/* Search Page Layout */
.search-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.search-layout__filters {
    background-color: var(--bg-primary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.search-layout__results {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* Hospital Page Layout */
.hospital-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.hospital-layout__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.hospital-layout__calendar {
    background-color: var(--bg-primary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* Auth Page Layout */
.auth-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 160px);
    padding: var(--space-6) var(--space-4);
}

.auth-layout__card {
    width: 100%;
    max-width: 400px;
    background-color: var(--bg-primary);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.auth-layout__header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.auth-layout__heading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.auth-layout__icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.auth-layout__icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.auth-layout__title {
    font-size: var(--font-size-xl);
    margin: 0;
    line-height: 1.2;
}

.auth-layout__subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--space-2);
}

/* ============================================
   OVERLAY & MODAL LAYOUT
   ============================================ */
.overlay {
    position: fixed;
    inset: 0;
    background-color: var(--bg-overlay);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    z-index: var(--z-modal);
}

.overlay.is-active .modal {
    transform: translateY(0);
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-4);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    background-color: var(--bg-primary);
}

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

.modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-target);
    height: var(--touch-target);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

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

.modal__close svg {
    width: 24px;
    height: 24px;
}

.modal__body {
    padding: var(--space-4);
}

.modal__footer {
    padding: var(--space-4);
    border-top: 1px solid var(--color-gray-200);
}