/* ============================================
   Hospital The One - App
   Mobile-First Premium Design System
   ============================================ */

:root {
    /* Colors - Hospital Premium Dark */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a2236;
    --bg-card-hover: #1f2b42;
    --bg-glass: rgba(26, 34, 54, 0.85);
    --bg-input: #0f1729;

    /* Accent Colors */
    --accent-primary: #3b82f6;
    --accent-primary-glow: rgba(59, 130, 246, 0.25);
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --accent-gradient-subtle: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);

    /* Status Colors */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --info: #06b6d4;
    --info-bg: rgba(6, 182, 212, 0.12);

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #93c5fd;

    /* Borders */
    --border-subtle: rgba(148, 163, 184, 0.1);
    --border-active: rgba(59, 130, 246, 0.4);

    /* Sizing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(59, 130, 246, 0.2); }
    50% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.4); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease-out forwards;
}

/* ===== Login Screen ===== */
.login-screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-screen::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.login-logo {
    position: relative;
    z-index: 1;
    margin-bottom: 40px;
    text-align: center;
}

.login-logo-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 36px;
    box-shadow: var(--shadow-glow);
}

.login-logo h1 {
    font-size: 24px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    animation: slideUp 0.5s ease-out;
}

.login-card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.login-card .login-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.otp-input {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 8px;
    padding: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
    text-decoration: none;
}

.btn-primary {
    width: 100%;
    background: var(--accent-gradient);
    color: white;
    padding: 14px;
    font-size: 15px;
    border-radius: var(--radius-md);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    padding: 10px;
    font-size: 13px;
}

.btn-secondary:hover {
    color: var(--text-primary);
}

.login-error {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #fca5a5;
    animation: fadeIn 0.3s ease;
}

/* ===== Main App Layout ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

/* Header */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 12px 16px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 600px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-logo {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.header-title {
    font-size: 16px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 16px;
}

.btn-icon:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: 16px;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

/* ===== Dashboard ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all 0.2s;
    animation: fadeIn 0.4s ease-out forwards;
    opacity: 0;
}

.stat-card:nth-child(1) { animation-delay: 0.05s; }
.stat-card:nth-child(2) { animation-delay: 0.1s; }
.stat-card:nth-child(3) { animation-delay: 0.15s; }
.stat-card:nth-child(4) { animation-delay: 0.2s; }

.stat-card .stat-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 10px;
}

.stat-card .stat-icon.blue { background: var(--accent-primary-glow); }
.stat-card .stat-icon.green { background: var(--success-bg); }
.stat-card .stat-icon.orange { background: var(--warning-bg); }
.stat-card .stat-icon.purple { background: rgba(139, 92, 246, 0.15); }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Search Bar ===== */
.search-container {
    margin-bottom: 16px;
}

.search-bar {
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
}

.search-bar input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.search-bar .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
    pointer-events: none;
}

/* ===== Section Headers ===== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-count {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-card);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
}

/* ===== Patient List ===== */
.patient-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.patient-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    cursor: pointer;
    transition: all 0.2s;
    animation: fadeIn 0.3s ease-out forwards;
    opacity: 0;
}

.patient-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-active);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.patient-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.patient-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-right: 8px;
}

.patient-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-internado {
    background: var(--info-bg);
    color: var(--info);
}

.badge-urgencia {
    background: var(--warning-bg);
    color: var(--warning);
}

.patient-info-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.patient-info-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.patient-info-item .info-icon {
    font-size: 13px;
    opacity: 0.7;
}

/* ===== Patient Detail ===== */
.detail-screen {
    animation: slideUp 0.3s ease-out;
}

.detail-back {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 0;
    margin-bottom: 16px;
    border: none;
    background: none;
    font-family: inherit;
    transition: color 0.2s;
}

.detail-back:hover {
    color: var(--accent-primary);
}

.detail-header {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 20px;
    margin-bottom: 16px;
    text-align: center;
}

.detail-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin: 0 auto 12px;
}

.detail-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.detail-attendance {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.detail-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.detail-section {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 12px;
    animation: fadeIn 0.4s ease-out forwards;
    opacity: 0;
}

.detail-section:nth-child(2) { animation-delay: 0.1s; }
.detail-section:nth-child(3) { animation-delay: 0.15s; }
.detail-section:nth-child(4) { animation-delay: 0.2s; }

.detail-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.detail-field {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.detail-field:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.detail-field-label {
    font-size: 13px;
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-right: 12px;
}

.detail-field-value {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: right;
    word-break: break-word;
}

.days-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.days-badge.low { background: var(--success-bg); color: var(--success); }
.days-badge.medium { background: var(--warning-bg); color: var(--warning); }
.days-badge.high { background: var(--danger-bg); color: var(--danger); }

/* ===== Units Distribution ===== */
.unit-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.unit-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.unit-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-active);
}

.unit-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.unit-count {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-primary);
    background: var(--accent-primary-glow);
    padding: 2px 10px;
    border-radius: var(--radius-full);
}

/* ===== Loading & States ===== */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 12px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state .empty-text {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ===== Skeleton Loading ===== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    margin-bottom: 8px;
}

.skeleton-line {
    height: 14px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-line.w-60 { width: 60%; }
.skeleton-line.w-40 { width: 40%; }
.skeleton-line.w-80 { width: 80%; }
.skeleton-line.w-30 { width: 30%; }

/* ===== Bottom Navigation ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-subtle);
    padding: 8px 0;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    z-index: 100;
}

.nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 400px;
    margin: 0 auto;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 16px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    font-family: inherit;
    transition: all 0.2s;
    border-radius: var(--radius-sm);
}

.nav-item.active {
    color: var(--accent-primary);
}

.nav-item:hover {
    color: var(--text-secondary);
}

.nav-item .nav-icon {
    font-size: 20px;
    line-height: 1;
}

.nav-item .nav-label {
    font-size: 10px;
    font-weight: 600;
}

/* ===== Toast Notifications ===== */
.toast {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    font-size: 13px;
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: transform 0.3s ease;
    max-width: 90%;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.toast.success {
    border-color: rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

/* ===== Responsive - Tablet ===== */
@media (min-width: 768px) {
    .app-main {
        padding: 24px;
    }

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

/* ===== Safe Area (iPhone notch) ===== */
@supports (padding: max(0px)) {
    .app-header {
        padding-top: max(12px, env(safe-area-inset-top));
    }

    .app-main {
        padding-bottom: calc(70px + max(8px, env(safe-area-inset-bottom)));
    }
}