/* =============================================================================
   BASE STYLES - almaia PWA
   Mobile-first, RTL, Gray Theme
============================================================================= */

/* CSS Variables - Color Palette */
:root {
    /* Brand - Gray Theme */
    --color-almaia-gray: #6B6F73;
    --color-almaia-black: #3a3a3a;
    --color-almaia-accent: #3a3a3a; /* אפור כהה במקום nude */

    /* UI */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F5F7F8;
    --color-bg-tertiary: #EDF1F2;
    --color-text-primary: #2E3133;
    --color-text-secondary: #6B6F73;
    --color-text-tertiary: #9CA3AF;
    --color-border: #D3D7DD;
    --color-border-light: #E5E7EB;

    /* Status */
    --color-success: #16A34A;
    --color-warning: #D97706;
    --color-error: #DC2626;
    --color-info: #3a3a3a;

    /* Buttons - Gray Theme */
    --color-button-primary: #3a3a3a;
    --color-button-primary-hover: #3a3a3a; /* ללא hover */
    --color-button-accent: #3a3a3a;
    --color-button-accent-hover: #3a3a3a; /* ללא hover */
    --color-button-disabled: #D1D5DB;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

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

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 4px 10px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);

    /* Typography */
    --font-family: 'Heebo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;

    /* Z-index */
    --z-base: 1;
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-modal: 80;
    --z-toast: 100;
    --z-loading: 120;

    /* Transitions */
    --transition-fast: 150ms ease-out;
    --transition-base: 220ms ease-out;
    --transition-slow: 350ms ease-out;
}

/* =============================================================================
   RESET & BASE
============================================================================= */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    direction: rtl;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

h5 {
    font-size: var(--font-size-base);
}

h6 {
    font-size: var(--font-size-sm);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-relaxed);
}

a {
    color: var(--color-almaia-accent);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

a:hover {
    opacity: 0.85;
}

strong, b {
    font-weight: var(--font-weight-semibold);
}

/* =============================================================================
   LAYOUT
============================================================================= */

#app-main {
    min-height: 100vh;
    padding-bottom: 80px;
}

.container {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.page {
    min-height: 100vh;
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-md) 0;
}

.page-header {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    border-bottom: 1px solid var(--color-border-light);
}

/* =============================================================================
   LOADING OVERLAY
============================================================================= */

.loading-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    transition: opacity var(--transition-base);
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-overlay .spinner {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-almaia-accent);
    animation: spin 0.8s linear infinite;
}

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

/* =============================================================================
   TOAST NOTIFICATIONS
============================================================================= */

.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: calc(100% - var(--spacing-lg) * 2);
    max-width: 400px;
    pointer-events: none;
}

.toast {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
    pointer-events: all;
    border-right: 4px solid var(--color-text-secondary);
}

.toast.success { border-right-color: var(--color-success); }
.toast.error { border-right-color: var(--color-error); }
.toast.warning { border-right-color: var(--color-warning); }
.toast.info { border-right-color: var(--color-info); }

.toast-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =============================================================================
   BOTTOM NAVIGATION
============================================================================= */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.04);
    display: flex;
    justify-content: space-around;
    padding: 0;
    z-index: var(--z-sticky);
    border-top: 1px solid var(--color-border-light);
    padding-bottom: max(8px, env(safe-area-inset-bottom));
}

.nav-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 8px;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    text-align: center;
    transition: color var(--transition-fast);
}

.nav-item.active {
    color: var(--color-almaia-accent);
    font-weight: var(--font-weight-semibold);
}

/* הסרת hover */
.nav-item:active {
    transform: scale(0.98);
}

/* =============================================================================
   TOAST & LOADING (LEGACY)
============================================================================= */

.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 16px 24px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    transition: bottom 0.3s ease;
    max-width: 90%;
    text-align: center;
}

.toast.show {
    bottom: 24px;
}

.toast-success {
    background-color: var(--color-success);
}

.toast-error {
    background-color: var(--color-error);
}

.toast-warning {
    background-color: var(--color-warning);
}

.toast-info {
    background-color: var(--color-button-primary);
}

.loading-spinner {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border-light);
    border-top-color: var(--color-button-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

.loading-spinner p {
    color: var(--color-text-primary);
    margin: 0;
}

.btn.loading {
    opacity: 0.6;
    cursor: not-allowed;
}

/* =============================================================================
   CONFIRMATION MODAL
============================================================================= */

.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease;
}

.confirm-dialog {
    background: white;
    padding: 24px;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    animation: slideUp 0.3s ease;
}

.confirm-message {
    font-size: 16px;
    color: var(--color-text-primary);
    margin-bottom: 24px;
    text-align: center;
    line-height: 1.5;
}

.confirm-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.confirm-buttons .btn {
    flex: 1;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* =============================================================================
   UTILITIES
============================================================================= */

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* =============================================================================
   RESPONSIVE
============================================================================= */

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

@media (min-width: 1024px) {
    .container {
        max-width: 960px;
    }
}