/* ============================================================
   ردما للبوابات الإلكترونية — الأنماط المشتركة
   الصفحة الرئيسية + حاسبة الرولينج شتر + حاسبة الأوفرهيد
   ============================================================ */

:root {
    --radma-primary: #2c3e50;
    --radma-primary-dark: #1f2d3a;
    --radma-accent: #3498db;
    --radma-success: #27ae60;
    --radma-whatsapp: #25D366;
    --radma-whatsapp-dark: #128C7E;
    --radma-danger: #c0392b;
    --radma-bg: #f4f6f9;
    --radma-card-bg: #ffffff;
    --radma-border: #e3e8ee;
    --radma-text: #2c3e50;
    --radma-text-muted: #6b7a89;
    --radma-radius: 15px;
    --radma-radius-sm: 8px;
    --radma-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --radma-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.15);
}

* {
    font-family: 'Tajawal', sans-serif;
    box-sizing: border-box;
}

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

body {
    background: var(--radma-bg);
    color: var(--radma-text);
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------- Header الموحد ---------- */
.site-header {
    background: var(--radma-card-bg);
    border-bottom: 1px solid var(--radma-border);
    padding: 12px 16px;
}

.site-header .header-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.site-header .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--radma-text);
    min-height: 48px;
}

.site-header .brand img {
    height: 48px;
    width: auto;
}

.site-header .brand .brand-name {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.3;
}

.site-header .site-link {
    color: var(--radma-accent);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 10px 8px;
}

.site-header .site-link:hover,
.site-header .site-link:focus-visible {
    text-decoration: underline;
}

/* ---------- المحتوى ---------- */
.site-main {
    flex: 1;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 20px 16px 40px;
}

/* رابط الرجوع داخل الحاسبات */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--radma-accent);
    text-decoration: none;
    font-weight: 700;
    padding: 10px 4px;
    margin-bottom: 8px;
}

.back-link:hover,
.back-link:focus-visible {
    text-decoration: underline;
}

/* ---------- بطاقات الصفحة الرئيسية ---------- */
.landing-intro {
    text-align: center;
    margin: 18px 0 28px;
}

.landing-intro h1 {
    font-size: 1.7rem;
    margin: 0 0 8px;
    color: var(--radma-primary);
}

.landing-intro p {
    color: var(--radma-text-muted);
    font-size: 1.05rem;
    margin: 0;
}

.gate-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 700px) {
    .gate-cards {
        grid-template-columns: 1fr 1fr;
    }
    .landing-intro h1 {
        font-size: 2rem;
    }
}

.gate-card {
    display: flex;
    flex-direction: column;
    background: var(--radma-card-bg);
    border: 1px solid var(--radma-border);
    border-radius: var(--radma-radius);
    box-shadow: var(--radma-shadow);
    overflow: hidden;
    text-decoration: none;
    color: var(--radma-text);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.gate-card:focus-visible {
    outline: 3px solid var(--radma-accent);
    outline-offset: 3px;
}

.gate-card .card-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    background: #dfe6ec;
}

.gate-card .card-body {
    padding: 18px 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.gate-card h2 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--radma-primary);
}

.gate-card p {
    margin: 0;
    color: var(--radma-text-muted);
    line-height: 1.7;
    flex: 1;
}

.gate-card .card-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--radma-primary);
    color: #fff;
    border-radius: var(--radma-radius-sm);
    padding: 13px 18px;
    font-weight: 700;
    font-size: 1rem;
    min-height: 48px;
}

.gate-card:hover .card-cta {
    background: var(--radma-primary-dark);
}

/* ---------- حاويات الحاسبات ---------- */
.calc-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--radma-card-bg);
    padding: 30px;
    border-radius: var(--radma-radius);
    box-shadow: var(--radma-shadow);
}

@media (max-width: 480px) {
    .calc-container {
        padding: 20px 16px;
    }
}

.calc-header {
    text-align: center;
    margin-bottom: 30px;
}

.calc-header img {
    max-width: 150px;
    height: auto;
    margin-bottom: 15px;
}

.calc-header h1 {
    font-size: 1.5rem;
    margin: 0 0 8px;
}

.calc-header p {
    color: var(--radma-text-muted);
    margin: 0 0 8px;
}

.color-offer {
    color: var(--radma-danger);
    font-weight: bold;
}

.section {
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid var(--radma-border);
    border-radius: 10px;
    background: #f9fafb;
}

.section h2 {
    font-size: 1.15rem;
    margin: 0 0 15px;
}

.input-group,
.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--radma-text);
    font-weight: 700;
}

input,
select {
    width: 100%;
    padding: 12px;
    border: 1px solid #cfd8e0;
    border-radius: 6px;
    margin-bottom: 10px;
    font-size: 16px;
    background: #fff;
    color: var(--radma-text);
}

input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--radma-accent);
    outline-offset: 1px;
}

button {
    background: var(--radma-primary);
    color: white;
    border: none;
    padding: 14px 25px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    transition: background 0.3s;
    display: block;
    margin: 20px auto;
    min-height: 48px;
}

button:hover {
    background: var(--radma-primary-dark);
}

button:focus-visible {
    outline: 3px solid var(--radma-accent);
    outline-offset: 2px;
}

button:disabled {
    background: #90a0af;
    cursor: not-allowed;
}

.whatsapp-btn {
    background: var(--radma-whatsapp);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.whatsapp-btn:hover {
    background: var(--radma-whatsapp-dark);
}

.whatsapp-btn:disabled {
    background: #90a0af;
}

.result {
    text-align: center;
    font-size: 24px;
    color: var(--radma-success);
    font-weight: bold;
    margin: 20px 0;
}

.dimension-note {
    font-size: 13px;
    color: var(--radma-text-muted);
    margin-top: 5px;
    font-style: italic;
}

.notes {
    color: var(--radma-text-muted);
    font-size: 14px;
    margin-top: 20px;
    text-align: center;
    line-height: 1.8;
}

.hidden {
    display: none;
}

.icon {
    margin-left: 8px;
}

/* ---------- التحقق من الهاتف عبر OTP ---------- */
.otp-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.otp-btn {
    background: var(--radma-accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-block;
    margin: 0;
    min-height: 40px;
}

.otp-btn:hover {
    background: #2b7cb8;
}

.otp-btn:disabled {
    background: #90a0af;
    cursor: not-allowed;
}

.otp-verified-badge {
    color: var(--radma-success);
    font-weight: 700;
    font-size: 0.9rem;
}

.otp-code-group {
    display: flex;
    gap: 10px;
    margin-bottom: 8px;
}

.otp-code-group input {
    flex: 1;
    margin-bottom: 0;
    letter-spacing: 4px;
    text-align: center;
    font-size: 1.1rem;
}

.otp-status {
    font-size: 0.85rem;
    min-height: 1.2em;
    margin-bottom: 8px;
}

.otp-status.status-pending {
    color: var(--radma-text-muted);
}

.otp-status.status-success {
    color: var(--radma-success);
}

.otp-status.status-error {
    color: var(--radma-danger);
}

/* ---------- حالة إرسال الطلب ---------- */
.submit-status {
    text-align: center;
    font-weight: 700;
    border-radius: var(--radma-radius-sm);
    margin: 15px auto;
    max-width: 600px;
    line-height: 1.8;
}

.submit-status:not(:empty) {
    padding: 14px 16px;
}

.submit-status.status-pending {
    background: #eaf2fb;
    color: #1f5d8f;
}

.submit-status.status-success {
    background: #e8f8ef;
    color: #1d7a43;
}

.submit-status.status-error {
    background: #fdecea;
    color: #a93226;
}

/* ---------- الصفحات القانونية ---------- */
.legal-header {
    text-align: center;
    margin: 10px 0 24px;
}

.legal-header img {
    width: 64px;
    height: 64px;
    margin-bottom: 10px;
}

.legal-header h1 {
    font-size: 1.5rem;
    margin: 0 0 6px;
    color: var(--radma-primary);
}

.legal-updated {
    color: var(--radma-text-muted);
    font-size: 0.85rem;
    margin: 0;
}

.lang-toggle {
    display: block;
    margin: 16px auto 26px;
    background: var(--radma-accent);
    color: #fff;
    border: none;
    border-radius: var(--radma-radius-sm);
    padding: 10px 22px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    min-height: 40px;
}

.lang-toggle:hover {
    background: #2b7cb8;
}

.legal-content {
    background: var(--radma-card-bg);
    border: 1px solid var(--radma-border);
    border-radius: var(--radma-radius);
    box-shadow: var(--radma-shadow);
    padding: 30px;
    line-height: 1.9;
}

@media (max-width: 480px) {
    .legal-content {
        padding: 20px 16px;
    }
}

.legal-content h2 {
    color: var(--radma-primary);
    font-size: 1.1rem;
    margin: 26px 0 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--radma-border);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p,
.legal-content li {
    color: var(--radma-text);
    margin: 0 0 10px;
}

.legal-content ul,
.legal-content ol {
    padding-inline-start: 22px;
    margin: 8px 0 14px;
}

.legal-content li {
    margin-bottom: 6px;
}

.legal-content a {
    color: var(--radma-accent);
}

.lang-en {
    direction: ltr;
    text-align: left;
}

:root[data-lang="ar"] .lang-en {
    display: none;
}

:root[data-lang="en"] .lang-ar {
    display: none;
}

.legal-footer-note {
    text-align: center;
    color: var(--radma-text-muted);
    font-size: 0.85rem;
    margin-top: 24px;
}

/* ---------- روابط الصفحات القانونية داخل Footer ---------- */
.footer-links {
    display: flex;
    gap: 8px 20px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

/* ---------- Footer الموحد ---------- */
.site-footer {
    background: var(--radma-primary);
    color: #ecf0f1;
    margin-top: 40px;
    padding: 26px 16px;
}

.site-footer .footer-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 30px;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1.9;
}

.site-footer .footer-brand {
    font-weight: 700;
    font-size: 1.05rem;
    width: 100%;
}

.site-footer a {
    color: #aed6f1;
    text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
    text-decoration: underline;
}

.site-footer .copyright {
    width: 100%;
    font-size: 0.85rem;
    color: #bdc3c7;
    margin-top: 6px;
}