/* ============================================
   ساتراپ جاب - Brutalist Design System
   سبک: Brutalism + Swiss Design + Minimal
   ============================================ */

/* ============================================
   VARIABLES & RESET
   ============================================ */

:root {
    /* Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-charcoal: #1a1a1a;
    --color-success: #00cc44;
    --color-error: #cc0000;
    --color-warning: #ff6600;
    --color-gray: #666666;
    --color-gray-light: #f5f5f5;
    --color-gray-subtle: #e0e0e0;
    --color-bg: #fafafa;
    
    /* Typography */
    --font-primary: 'Aviny', 'Vazirmatn', 'Vazir', 'IRANSans', 'Sahel', sans-serif;
    --font-secondary: 'Inter', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --space-4: 4px;
    --space-8: 8px;
    --space-16: 16px;
    --space-24: 24px;
    --space-32: 32px;
    --space-48: 48px;
    --space-64: 64px;
    --space-96: 96px;
    
    /* Layout */
    --max-width: 1280px;
    --grid-gutter: 24px;
    
    /* Borders */
    --border-thin: 1px solid var(--color-black);
    --border-medium: 2px solid var(--color-black);
    --border-heavy: 4px solid var(--color-black);
    --border-subtle: 1px solid var(--color-gray-subtle);
    
    /* Shadows */
    --shadow-light: 4px 4px 0 0 var(--color-black);
    --shadow-medium: 8px 8px 0 0 var(--color-black);
    --shadow-heavy: 12px 12px 0 0 var(--color-black);
    --shadow-subtle: 4px 4px 0 0 var(--color-gray-subtle);
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-black);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, .h1 {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-24);
}

h2, .h2 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-24);
}

h3, .h3 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-16);
}

h4, .h4 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-16);
}

p, .body {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: var(--space-16);
}

.body-small {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
}

.text-small {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
}

.text-micro {
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.text-mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-black);
    color: var(--color-white);
    padding: 14px 32px;
    font-size: 16px;
}

.btn-primary:hover {
    background: var(--color-charcoal);
    box-shadow: var(--shadow-light);
    transform: translate(-2px, -2px);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-black);
    border: var(--border-medium);
    padding: 14px 32px;
    font-size: 16px;
}

.btn-secondary:hover {
    background: var(--color-black);
    color: var(--color-white);
    box-shadow: var(--shadow-light);
    transform: translate(-2px, -2px);
}

.btn-danger {
    background: var(--color-error);
    color: var(--color-white);
    padding: 14px 32px;
    font-size: 16px;
}

.btn-danger:hover {
    background: #aa0000;
    box-shadow: var(--shadow-light);
}

/* Button Sizes */
.btn-large {
    height: 56px;
    font-size: 18px;
    padding: 0 40px;
}

.btn-medium {
    height: 48px;
    font-size: 16px;
    padding: 0 32px;
}

.btn-small {
    height: 40px;
    font-size: 14px;
    padding: 0 24px;
}

.btn-full {
    width: 100%;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--space-24);
}

.form-label {
    display: block;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: var(--space-8);
    color: var(--color-black);
}

.form-control {
    width: 100%;
    height: 56px;
    padding: 16px;
    font-family: var(--font-primary);
    font-size: 18px;
    border: 2px solid var(--color-gray-subtle);
    background: var(--color-white);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border: 3px solid var(--color-black);
}

.form-control::placeholder {
    color: var(--color-gray);
    font-weight: 400;
}

textarea.form-control {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23000' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 16px center;
    padding-left: 40px;
}

/* Error States */
.form-control.is-invalid {
    border: 2px solid var(--color-error);
}

.invalid-feedback {
    display: block;
    margin-top: var(--space-8);
    font-size: 14px;
    color: var(--color-error);
}

/* Success States */
.form-control.is-valid {
    border: 2px solid var(--color-success);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-16);
}

.form-check-input {
    width: 24px;
    height: 24px;
    margin-left: var(--space-8);
    border: 2px solid var(--color-black);
    cursor: pointer;
    appearance: none;
    position: relative;
}

.form-check-input[type="checkbox"] {
    border-radius: 0;
}

.form-check-input[type="checkbox"]:checked {
    background: var(--color-black);
}

.form-check-input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    color: var(--color-white);
    font-size: 16px;
    font-weight: 900;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input[type="radio"]:checked {
    background: var(--color-black);
}

.form-check-input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-white);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.form-check-label {
    font-size: 16px;
    cursor: pointer;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--color-white);
    border: var(--border-subtle);
    padding: var(--space-24);
    transition: all 0.2s ease;
}

.card:hover {
    border: var(--border-medium);
    box-shadow: var(--shadow-subtle);
    transform: translate(-2px, -2px);
}

.card-elevated {
    box-shadow: 8px 8px 0 0 var(--color-gray-subtle);
}

.card-header {
    margin-bottom: var(--space-24);
    padding-bottom: var(--space-16);
    border-bottom: var(--border-subtle);
}

.card-body {
    margin-bottom: var(--space-24);
}

.card-footer {
    margin-top: var(--space-24);
    padding-top: var(--space-16);
    border-top: var(--border-subtle);
}

/* ============================================
   BADGES & TAGS
   ============================================ */

.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: var(--border-thin);
    background: transparent;
    color: var(--color-black);
}

.badge-success {
    border-color: var(--color-success);
    color: var(--color-success);
}

.badge-error {
    border-color: var(--color-error);
    color: var(--color-error);
}

.badge-warning {
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.badge-info {
    border-color: var(--color-gray);
    color: var(--color-gray);
}

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

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-24);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-48);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-64);
    }
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(-1 * var(--grid-gutter) / 2);
}

.col {
    flex: 1;
    padding: 0 calc(var(--grid-gutter) / 2);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--grid-gutter);
}

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

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

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

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

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

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-8); }
.mt-2 { margin-top: var(--space-16); }
.mt-3 { margin-top: var(--space-24); }
.mt-4 { margin-top: var(--space-32); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-8); }
.mb-2 { margin-bottom: var(--space-16); }
.mb-3 { margin-bottom: var(--space-24); }
.mb-4 { margin-bottom: var(--space-32); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-8); }
.p-2 { padding: var(--space-16); }
.p-3 { padding: var(--space-24); }
.p-4 { padding: var(--space-32); }

.bg-black {
    background: var(--color-black);
    color: var(--color-white);
}

.bg-white {
    background: var(--color-white);
    color: var(--color-black);
}

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

/* ============================================
   SPECIALTY CARDS (کارت‌های تخصص)
   ============================================ */

.specialty-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-16);
    margin-bottom: var(--space-24);
}

.specialty-card {
    position: relative;
    border: 3px solid var(--color-black);
    padding: var(--space-24) var(--space-16);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--color-white);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.specialty-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translate(-4px, -4px);
}

.specialty-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.specialty-card input[type="checkbox"]:checked + .specialty-card-content {
    background: var(--color-gray-light);
}

.specialty-card input[type="checkbox"]:checked ~ .checkmark {
    display: flex;
}

.specialty-card-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.specialty-icon {
    font-size: 32px;
    margin-bottom: var(--space-8);
    line-height: 1;
}

.specialty-card input[type="checkbox"]:checked + .specialty-card-content .specialty-icon {
    transform: scale(1.1);
}

.checkmark {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 30px;
    height: 30px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 0;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 900;
    box-shadow: var(--shadow-light);
}

.specialty-card input[type="checkbox"]:checked ~ .checkmark {
    display: flex;
}

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

@media (max-width: 640px) {
    h1, .h1 {
        font-size: 48px;
    }
    
    h2, .h2 {
        font-size: 36px;
    }
    
    h3, .h3 {
        font-size: 28px;
    }
    
    .container {
        padding: 0 var(--space-16);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .specialty-cards-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-12);
    }
    
    .specialty-card {
        min-height: 100px;
        padding: var(--space-16) var(--space-12);
    }
    
    .specialty-icon {
        font-size: 28px;
    }
    
    .btn-full-mobile {
        width: 100%;
    }
}
/* ============================================
   LOADING & EMPTY STATES
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-light) 25%,
        #e0e0e0 50%,
        var(--color-gray-light) 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 0;
}

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

.empty-state {
    text-align: center;
    padding: var(--space-64) var(--space-24);
}

.empty-state-icon {
    font-size: 64px;
    color: var(--color-gray);
    margin-bottom: var(--space-24);
}

.empty-state-text {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: var(--space-24);
}

/* ============================================
   ALERTS & MESSAGES
   ============================================ */

.alert {
    padding: var(--space-16) var(--space-24);
    border: var(--border-medium);
    margin-bottom: var(--space-24);
}

.alert-success {
    background: #f0fff4;
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background: #fff5f5;
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-warning {
    background: #fffaf0;
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background: var(--color-gray-light);
    border-color: var(--color-gray);
    color: var(--color-gray);
}