/* ============================================
   استایل علمی 2026 - استودیو هوش موزیک
   مینیمالیسم گرم + تایپوگرافی جسور + بنفش مدرن
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700;14..32,800&display=swap');

/* فونت فارسی وزیرمتن (جایگزین عالی برای یکانبخ) */
@import url('https://cdn.jsdelivr.net/gh/rastikerdar/vazirmatn@v33.003/Vazirmatn-font-face.css');

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

body {
    font-family: 'Vazirmatn', 'Inter', sans-serif;
    background: #fafaff;
    color: #18181b;
    line-height: 1.6;
}

/* ========== کنتینر اصلی ========== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    background: #ffffff;
    border-radius: 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.02);
    overflow: hidden;
}

@media (max-width: 768px) {
    .container {
        border-radius: 0;
        margin: 0;
    }
}

/* ========== هدر - طراحی مینیمال با تایپوگرافی قوی ========== */
header {
    background: #ffffff;
    padding: 48px 56px 40px;
    text-align: center;
    border-bottom: 1px solid #f0f0f5;
}

@media (max-width: 768px) {
    header {
        padding: 32px 24px;
    }
}

.logo-container {
    margin-bottom: 24px;
}

.logo-image {
    width: 72px;
    height: 72px;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.12);
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.02);
}

header h1 {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #1e1b2e 0%, #4c1d95 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.5rem;
    }
}

header .studio-name {
    font-size: 0.75rem;
    font-weight: 500;
    color: #7c3aed;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

header p {
    font-size: 0.95rem;
    color: #6b7280;
    max-width: 560px;
    margin: 0 auto;
}

/* ========== بخش اصلی - مینیمالیسم گرم ========== */
.intro {
    padding: 56px 56px 40px;
}

@media (max-width: 768px) {
    .intro {
        padding: 36px 24px;
    }
}

.intro h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #18181b;
    margin-bottom: 20px;
    border-right: 4px solid #7c3aed;
    padding-right: 20px;
}

.intro h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #18181b;
    margin: 48px 0 24px;
}

.intro p {
    color: #52525b;
    line-height: 1.75;
    margin-bottom: 24px;
}

/* ========== گرید خدمات - 4 ستون ریسپانسیو ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 48px 0;
}

@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    background: #fafaff;
    padding: 28px 20px;
    border-radius: 24px;
    text-align: center;
    transition: all 0.25s ease;
    border: 1px solid #f0f0f5;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: #e9d5ff;
    box-shadow: 0 12px 24px rgba(124, 58, 237, 0.06);
}

.service-card i {
    font-size: 2rem;
    color: #7c3aed;
    margin-bottom: 16px;
}

.service-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #18181b;
    margin-bottom: 8px;
}

.service-card p {
    font-size: 0.85rem;
    color: #71717a;
    line-height: 1.6;
}

/* ========== باکس قیمت - مینیمال و جمع و جور ========== */
.price-banner {
    background: linear-gradient(105deg, #f5f3ff 0%, #fafaff 100%);
    padding: 28px 32px;
    border-radius: 24px;
    margin: 48px 0;
    text-align: center;
    border: 1px solid #ede9fe;
}

.price-banner h3 {
    color: #18181b;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 8px;
    opacity: 0.7;
}

.price-banner .price {
    font-size: 2.2rem;
    font-weight: 800;
    color: #7c3aed;
    margin: 8px 0;
}

.price-banner .price small {
    font-size: 1rem;
    font-weight: 500;
    color: #52525b;
}

.price-banner .price-note {
    font-size: 0.85rem;
    color: #71717a;
    margin-top: 8px;
}

/* ========== فرآیند همکاری - 6 مرحله ========== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 32px 0 48px;
}

@media (max-width: 700px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 450px) {
    .process-steps {
        grid-template-columns: 1fr;
    }
}

.process-step {
    background: #fafaff;
    padding: 20px 16px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.2s;
}

.process-step .step-number {
    width: 36px;
    height: 36px;
    background: #7c3aed;
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    margin: 0 auto 12px;
}

.process-step h5 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #18181b;
    margin-bottom: 6px;
}

.process-step p {
    font-size: 0.8rem;
    color: #71717a;
}

/* ========== بخش متخصصان ========== */
.experts-section {
    background: #f5f3ff;
    padding: 32px 32px;
    border-radius: 24px;
    margin: 48px 0;
}

.experts-section h4 {
    color: #18181b;
    margin-bottom: 24px;
    font-size: 1.2rem;
    font-weight: 700;
}

.experts-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 800px) {
    .experts-list {
        grid-template-columns: 1fr;
    }
}

.expert-item {
    background: #ffffff;
    padding: 20px;
    border-radius: 20px;
    border-right: 3px solid #7c3aed;
}

.expert-item strong {
    color: #7c3aed;
    display: block;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.expert-item p {
    font-size: 0.85rem;
    color: #52525b;
    line-height: 1.6;
}

/* ========== جدول مقایسه ========== */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

@media (max-width: 700px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.comparison-card {
    background: #fafaff;
    border-radius: 20px;
    padding: 24px;
}

.comparison-card.ai-card {
    border: 1px solid #ede9fe;
    background: #ffffff;
}

.comparison-card h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid;
}

.comparison-card.ai-card h5 {
    color: #7c3aed;
    border-bottom-color: #7c3aed;
}

.comparison-card.traditional-card h5 {
    color: #71717a;
    border-bottom-color: #e4e4e7;
}

.comparison-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px dashed #e4e4e7;
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-label {
    font-weight: 600;
    color: #18181b;
    font-size: 0.9rem;
}

.comparison-value {
    color: #71717a;
    font-size: 0.9rem;
}

.ai-card .comparison-value {
    color: #7c3aed;
    font-weight: 500;
}

/* ========== کلمات کلیدی ========== */
.keywords {
    background: #fafaff;
    padding: 28px 32px;
    border-radius: 24px;
    margin: 48px 0;
}

.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.keyword-item {
    background: #ffffff;
    padding: 6px 16px;
    border-radius: 40px;
    color: #7c3aed;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid #ede9fe;
    transition: all 0.2s;
}

.keyword-item:hover {
    background: #7c3aed;
    color: white;
    border-color: #7c3aed;
}

/* ========== بخش فرم ========== */
.form-section {
    background: #ffffff;
    padding: 56px 56px;
    border-top: 1px solid #f0f0f5;
}

@media (max-width: 768px) {
    .form-section {
        padding: 36px 24px;
    }
}

.form-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #18181b;
    text-align: center;
    margin-bottom: 8px;
}

.form-section > p {
    text-align: center;
    color: #6b7280;
    margin-bottom: 40px;
}

/* مراحل فرم */
.step {
    display: none;
    animation: fadeIn 0.3s ease;
}

.step.active {
    display: block;
}

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

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #18181b;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #e4e4e7;
    border-radius: 16px;
    font-size: 0.9rem;
    font-family: 'Vazirmatn', 'Inter', sans-serif;
    background: #fafaff;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #7c3aed;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.08);
    background: #ffffff;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* دکمه‌ها - با رنگ بنفش مدرن */
.btn {
    background: #7c3aed;
    color: white;
    border: none;
    padding: 12px 32px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'Vazirmatn', 'Inter', sans-serif;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover {
    background: #6d28d9;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid #7c3aed;
    color: #7c3aed;
}

.btn-outline:hover {
    background: #7c3aed;
    color: white;
    transform: translateY(-2px);
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 32px;
}

@media (max-width: 500px) {
    .button-group {
        flex-direction: column;
        gap: 12px;
    }
    .btn {
        width: 100%;
        text-align: center;
    }
}

/* هشدارها */
.alert {
    padding: 14px 20px;
    border-radius: 16px;
    margin-bottom: 28px;
    display: none;
    font-size: 0.9rem;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border-right: 3px solid #10b981;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-right: 3px solid #ef4444;
}

/* فوتر */
footer {
    background: #fafaff;
    padding: 40px 32px;
    text-align: center;
    border-top: 1px solid #f0f0f5;
}

footer p {
    margin: 6px 0;
    font-size: 0.85rem;
    color: #71717a;
}

footer p:first-child {
    font-weight: 600;
    color: #18181b;
}