/* CSS Custom Properties */
:root {
    --color-primary: #5C4D4D;
    --color-secondary: #8A7676;
    --color-accent: #E8DDD4;
    --color-light: #F5EFE9;
    --color-lightest: #FDFBF9;
    --color-success: #4A9D6E;
    --color-warning: #D4A853;
    --color-danger: #C75C5C;
    
    --font-family-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 32px;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --border-radius-full: 9999px;
    --box-shadow: 0 2px 8px rgba(92, 77, 77, 0.08);
    --box-shadow-lg: 0 8px 24px rgba(92, 77, 77, 0.12);
    --box-shadow-xl: 0 16px 48px rgba(92, 77, 77, 0.16);
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --animation-duration: 0.3s;
    
    --header-height: 180px;
    --bottom-nav-height: 72px;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --color-primary: #D4C4B0;
    --color-secondary: #A89888;
    --color-accent: #3D3532;
    --color-light: #2A2725;
    --color-lightest: #1C1A19;
    --text-color: #E8E0D8;
    --bg-color: #121110;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + var(--spacing-md));
}

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--color-primary);
    background-color: var(--color-lightest);
    transition: var(--transition);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

[data-theme="dark"] body {
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Header - Fixed */
.header {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-md) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow-lg);
    height: var(--header-height);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

[data-theme="dark"] .header {
    background-color: rgba(45, 40, 38, 0.95);
}
.black-bar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 30px;
background-color: #000000;
z-index: 1001;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.header__brand {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: inherit;
}

.header__logo {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
    object-fit: contain;
    border-radius: var(--border-radius);
}

@media (max-width: 480px) {
    .header__logo {
        width: 80px;
        height: 80px;
    }
}

.header__title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

@media (max-width: 480px) {
    .header__title {
        font-size: var(--font-size-lg);
    }
}

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

.nav__toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    color: white;
    transition: var(--transition);
}

.nav__toggle svg {
    width: 24px;
    height: 24px;
    display: block;
}

.nav__toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav__link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    display: block;
}

.nav__link:hover,
.nav__link--active {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
}

.header__controls {
    display: flex;
    gap: var(--spacing-xs);
}

.control-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.control-btn svg {
    width: 20px;
    height: 20px;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.control-btn__text {
    display: none;
}

@media (min-width: 768px) {
    .control-btn__text {
        display: inline;
    }
}

/* Theme toggle icons */
.icon-sun,
.icon-moon {
    display: none;
}

[data-theme="light"] .icon-moon,
body:not([data-theme="dark"]) .icon-moon {
    display: block;
}

[data-theme="dark"] .icon-sun {
    display: block;
}

[data-theme="dark"] .icon-moon {
    display: none;
}

/* Main Content */
.main {
    min-height: calc(100vh - var(--header-height));
    padding-top: var(--header-height);
    padding-bottom: calc(var(--bottom-nav-height) + var(--spacing-lg));
}

@media (min-width: 769px) {
    .main {
        padding-bottom: var(--spacing-lg);
    }
}

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

@media (min-width: 768px) {
    .section {
        padding: var(--spacing-xxl) 0;
    }
}

.section:nth-child(even) {
    background-color: var(--color-light);
}

[data-theme="dark"] .section:nth-child(even) {
    background-color: var(--color-light);
}

.section__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .section__title {
        font-size: var(--font-size-xxl);
        margin-bottom: var(--spacing-xxl);
    }
}

[data-theme="dark"] .section__title {
    color: var(--text-color);
}

/* Instructions Section */
.instructions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 480px) {
    .instructions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .instructions-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-lg);
    }
}

.instruction-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .instruction-card {
    background: var(--color-accent);
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.05);
}

.instruction-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-lg);
}

.instruction-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-accent), var(--color-light));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .instruction-card__icon {
    background: linear-gradient(135deg, var(--color-light), var(--color-accent));
}

.instruction-card__icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

[data-theme="dark"] .instruction-card__icon svg {
    color: var(--text-color);
}

.instruction-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

[data-theme="dark"] .instruction-card__title {
    color: var(--text-color);
}

.instruction-card__text {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

[data-theme="dark"] .instruction-card__text {
    color: var(--text-color);
    opacity: 0.8;
}

.warning-box {
    background: linear-gradient(135deg, var(--color-danger), #B84A4A);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    box-shadow: var(--box-shadow-lg);
}

.warning-box__icon {
    flex-shrink: 0;
}

.warning-box__icon svg {
    width: 28px;
    height: 28px;
}

.warning-box__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.warning-box__text {
    opacity: 0.95;
    line-height: 1.6;
}

/* Schedule Section */
.schedule-controls {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .schedule-controls {
    background: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.05);
}

.schedule-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .schedule-form {
        grid-template-columns: repeat(3, 1fr) auto;
        align-items: end;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

[data-theme="dark"] .form-label {
    color: var(--text-color);
}

.form-input,
.form-select {
    padding: var(--spacing-md);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: white;
    color: var(--color-primary);
    width: 100%;
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select {
    background: var(--color-light);
    color: var(--text-color);
    border-color: var(--color-secondary);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(92, 77, 77, 0.1);
}

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn--primary {
    background: var(--color-primary);
    color: white;
}

.btn--primary:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn--secondary {
    background: var(--color-accent);
    color: var(--color-primary);
}

[data-theme="dark"] .btn--secondary {
    background: var(--color-light);
    color: var(--text-color);
}

.btn--secondary:hover {
    background: var(--color-light);
    transform: translateY(-2px);
}

.btn--link {
    background: none;
    color: var(--color-primary);
    padding: var(--spacing-sm);
    font-weight: 500;
}

[data-theme="dark"] .btn--link {
    color: var(--text-color);
}

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

.schedule-list {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.schedule-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

@media (min-width: 768px) {
    .schedule-item {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

[data-theme="dark"] .schedule-item {
    background: var(--color-accent);
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.05);
}

.schedule-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.schedule-item--overdue {
    border-left: 4px solid var(--color-danger);
}

.schedule-item--due-soon {
    border-left: 4px solid var(--color-warning);
}

.schedule-item__info h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-lg);
}

[data-theme="dark"] .schedule-item__info h3 {
    color: var(--text-color);
}

.schedule-item__info p {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
}

[data-theme="dark"] .schedule-item__info p {
    color: var(--text-color);
    opacity: 0.8;
}

.schedule-item__overdue {
    color: var(--color-danger);
    font-weight: 600;
}

.schedule-item__due-soon {
    color: var(--color-warning);
    font-weight: 600;
}

.schedule-item__actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.schedule-calendar {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .schedule-calendar {
    background: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.05);
}

/* Calendar Styles */
.calendar {
    width: 100%;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.calendar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

[data-theme="dark"] .calendar-title {
    color: var(--text-color);
}

.calendar-nav {
    background: var(--color-accent);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--color-primary);
}

[data-theme="dark"] .calendar-nav {
    background: var(--color-light);
    color: var(--text-color);
}

.calendar-nav:hover {
    background: var(--color-light);
    transform: scale(1.05);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-day-header {
    text-align: center;
    font-weight: 600;
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
    padding: var(--spacing-sm);
    text-transform: uppercase;
}

.calendar-day {
    aspect-ratio: 1;
    padding: var(--spacing-xs);
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 40px;
}

@media (min-width: 768px) {
    .calendar-day {
        min-height: 60px;
        padding: var(--spacing-sm);
    }
}

.calendar-day:hover {
    background: var(--color-accent);
}

.calendar-day--other-month {
    opacity: 0.3;
}

.calendar-day--today {
    background: var(--color-primary);
    color: white;
}

.calendar-day--today:hover {
    background: var(--color-secondary);
}

.calendar-day--has-schedule {
    background: var(--color-success);
    color: white;
}

.calendar-day-number {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.calendar-day-schedules {
    display: none;
}

@media (min-width: 768px) {
    .calendar-day-schedules {
        display: block;
        font-size: var(--font-size-xs);
        margin-top: var(--spacing-xs);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        width: 100%;
    }
}

.calendar-schedule {
    font-size: var(--font-size-xs);
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 4px;
    border-radius: 4px;
    margin-top: 2px;
}

/* Techniques Section */
.techniques-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--color-accent);
    color: var(--color-primary);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

[data-theme="dark"] .tab-btn {
    background: var(--color-light);
    color: var(--text-color);
}

.tab-btn svg {
    width: 18px;
    height: 18px;
}

.tab-btn:hover {
    background: var(--color-light);
    transform: translateY(-2px);
}

[data-theme="dark"] .tab-btn:hover {
    background: var(--color-accent);
}

.tab-btn--active {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--box-shadow);
}

[data-theme="dark"] .tab-btn--active {
    background: var(--color-primary);
    color: var(--bg-color);
}

.tab-content {
    display: none;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

@media (min-width: 768px) {
    .tab-content {
        padding: var(--spacing-xl);
    }
}

[data-theme="dark"] .tab-content {
    background: var(--color-accent);
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.05);
}

.tab-content--active {
    display: block;
    animation: fadeIn var(--animation-duration) ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.technique-steps {
    display: grid;
    gap: var(--spacing-lg);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.step__number {
    background: var(--color-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-size: var(--font-size-lg);
}

.step__content {
    flex: 1;
}

.step__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

[data-theme="dark"] .step__title {
    color: var(--text-color);
}

.step__text {
    color: var(--color-secondary);
    line-height: 1.7;
}

[data-theme="dark"] .step__text {
    color: var(--text-color);
    opacity: 0.8;
}

.technique-advanced {
    display: grid;
    gap: var(--spacing-lg);
}

.advanced-tip {
    padding: var(--spacing-lg);
    background: var(--color-light);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-primary);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

[data-theme="dark"] .advanced-tip {
    background: var(--color-light);
}

.advanced-tip__icon {
    flex-shrink: 0;
}

.advanced-tip__icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

[data-theme="dark"] .advanced-tip__icon svg {
    color: var(--text-color);
}

.advanced-tip__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

[data-theme="dark"] .advanced-tip__title {
    color: var(--text-color);
}

.advanced-tip__text {
    color: var(--color-secondary);
    line-height: 1.7;
}

[data-theme="dark"] .advanced-tip__text {
    color: var(--text-color);
    opacity: 0.8;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.product-card {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.product-card__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.product-card__header svg {
    width: 24px;
    height: 24px;
}

.product-card--recommended {
    background: linear-gradient(135deg, var(--color-success), #3D8A5E);
    color: white;
}

.product-card--avoid {
    background: linear-gradient(135deg, var(--color-danger), #B84A4A);
    color: white;
}

.product-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.product-card__list {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.product-card__list li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
    position: relative;
    padding-left: calc(var(--spacing-lg) + var(--spacing-sm));
    font-size: var(--font-size-sm);
}

.product-card__list li::before {
    content: '✓';
    position: absolute;
    left: var(--spacing-md);
    font-weight: bold;
}

.product-card--avoid .product-card__list li::before {
    content: '✗';
}

/* Alerts Section */
.alerts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .alerts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.alert-card {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
    color: white;
    position: relative;
    overflow: hidden;
}

.alert-card__icon {
    margin-bottom: var(--spacing-md);
}

.alert-card__icon svg {
    width: 32px;
    height: 32px;
}

.alert-card--warning {
    background: linear-gradient(135deg, var(--color-danger), #B84A4A);
}

.alert-card--caution {
    background: linear-gradient(135deg, var(--color-warning), #C49A47);
}

.alert-card--normal {
    background: linear-gradient(135deg, var(--color-success), #3D8A5E);
}

.alert-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.alert-card__list {
    list-style: none;
    margin-bottom: var(--spacing-md);
    display: grid;
    gap: var(--spacing-sm);
}

.alert-card__list li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
    position: relative;
    padding-left: calc(var(--spacing-lg) + var(--spacing-sm));
    font-size: var(--font-size-sm);
}

.alert-card__list li::before {
    content: '•';
    position: absolute;
    left: var(--spacing-md);
    font-weight: bold;
}

.alert-card__action {
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: var(--font-size-sm);
}

.emergency-contact {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .emergency-contact {
    background: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.05);
}

.emergency-contact__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

[data-theme="dark"] .emergency-contact__title {
    color: var(--text-color);
}

.emergency-form {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    max-width: 400px;
    margin: 0 auto;
}

.emergency-form .form-input {
    flex: 1;
    min-width: 200px;
}

.saved-contact {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

[data-theme="dark"] .saved-contact {
    background: var(--color-light);
    color: var(--text-color);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--color-accent);
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    height: var(--bottom-nav-height);
    z-index: 1000;
    padding-bottom: env(safe-area-inset-bottom);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 80px;
}

[data-theme="dark"] .bottom-nav {
    background: var(--color-accent);
    border-color: var(--color-light);
}

@media (min-width: 769px) {
    .bottom-nav {
        display: none;
    }
}

.bottom-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--color-secondary);
    font-size: var(--font-size-xs);
    padding: var(--spacing-sm);
    transition: var(--transition);
    position: relative;
    gap: var(--spacing-xs);
}

.bottom-nav__item svg {
    width: 22px;
    height: 22px;
    transition: var(--transition);
}

.bottom-nav__item span {
    font-weight: 500;
}

.bottom-nav__item:hover,
.bottom-nav__item--active {
    color: var(--color-primary);
}

[data-theme="dark"] .bottom-nav__item:hover,
[data-theme="dark"] .bottom-nav__item--active {
    color: var(--text-color);
}

.bottom-nav__item--home {
    position: relative;
}

.bottom-nav__item--home::before {
    content: '';
    position: absolute;
    top: -8px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: var(--border-radius-full);
    z-index: -1;
    box-shadow: var(--box-shadow-lg);
}

.bottom-nav__item--home svg {
    color: white;
}

.bottom-nav__item--home span {
    color: var(--color-primary);
}

[data-theme="dark"] .bottom-nav__item--home span {
    color: var(--text-color);
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-bottom: 150px;
}

@media (min-width: 769px) {
    .footer {
        margin-bottom: 0;
    }
}

.footer__text {
    margin: 0;
    font-size: var(--font-size-sm);
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer__link:hover {
    color: white;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: var(--border-radius-full);
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

.loading-text {
    color: white;
    font-size: var(--font-size-lg);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    right: var(--spacing-md);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: calc(100vw - var(--spacing-lg));
}

@media (min-width: 768px) {
    .toast-container {
        max-width: 360px;
    }
}

.toast {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-xl);
    transform: translateX(120%);
    transition: var(--transition);
    position: relative;
    cursor: pointer;
}

.toast.show {
    transform: translateX(0);
}

.toast--success { background: var(--color-success); }
.toast--error { background: var(--color-danger); }
.toast--warning { background: var(--color-warning); }
.toast--info { background: #4A7DB8; }

.toast::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    animation: toastProgress 5s linear forwards;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

@keyframes toastProgress {
    from { width: 100%; }
    to { width: 0%; }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--color-secondary);
}

[data-theme="dark"] .empty-state {
    color: var(--text-color);
}

.empty-state__icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.6;
}

.empty-state__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

[data-theme="dark"] .empty-state__title {
    color: var(--text-color);
}

.empty-state__text {
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

/* Responsive Navigation */
@media (max-width: 768px) {
    .header .container {
        position: relative;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__list {
        display: none;
        position: absolute;
        top: 100%;
        left: var(--spacing-md);
        right: var(--spacing-md);
        background: var(--color-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        border-radius: var(--border-radius);
        margin-top: var(--spacing-sm);
        box-shadow: var(--box-shadow-xl);
        gap: var(--spacing-xs);
    }
    
    [data-theme="dark"] .nav__list {
        background: rgba(45, 40, 38, 0.98);
    }
    
    .nav__list.show {
        display: flex;
        animation: slideDown 0.2s ease;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .header__controls {
        order: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .section__title {
        font-size: var(--font-size-lg);
    }
    
    .instruction-card,
    .schedule-controls,
    .tab-content,
    .emergency-contact {
        padding: var(--spacing-md);
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step__number {
        align-self: center;
    }
    
    .advanced-tip {
        flex-direction: column;
        text-align: center;
    }
    
    .advanced-tip__icon {
        align-self: center;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .bottom-nav,
    .loading-overlay,
    .toast-container {
        display: none !important;
    }
    
    .main {
        padding: 0;
    }
    
    .section {
        page-break-inside: avoid;
        padding: var(--spacing-md) 0;
    }
    
    .instruction-card,
    .alert-card,
    .schedule-item {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #000;
        --color-secondary: #333;
        --color-accent: #666;
        --color-light: #999;
        --color-lightest: #fff;
    }
}

/* Focus Styles for Accessibility */
button:focus,
input:focus,
select:focus,
a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

[data-theme="dark"] button:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] a:focus {
    outline-color: var(--text-color);
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Input validation */
.input-valid {
    border-color: var(--color-success) !important;
}

.input-invalid {
    border-color: var(--color-danger) !important;
}

/* Animate in class for intersection observer */
.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

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