/*
============================================================
/assets/css/global.css
ไฟล์ CSS กลางของเว็บไซต์
ใช้ร่วมกันทุกหน้าฝั่ง User
ธีมหลัก: iOS Style, Clean, White, Rounded Card
Main Color: #FF5A5F
============================================================
*/

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
    background: #ffffff;
    color: #1f2937;
    line-height: 1.6;
    font-size: 16px;
}

/* ---------------------------------------------------------
   ตัวแปรสีหลักของเว็บไซต์
--------------------------------------------------------- */
:root {
    --primary-color: #FF5A5F;
    --primary-dark: #e84b50;
    --primary-soft: #fff0f1;

    --white: #ffffff;
    --black: #111827;
    --text-main: #1f2937;
    --text-muted: #6b7280;

    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --body-bg: #ffffff;

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --radius-small: 10px;
    --radius-medium: 16px;
    --radius-large: 26px;

    --shadow-soft: 0 12px 35px rgba(17, 24, 39, 0.08);
    --shadow-card: 0 8px 24px rgba(17, 24, 39, 0.07);
    --shadow-hover: 0 16px 42px rgba(17, 24, 39, 0.12);

    --container-width: 1180px;
}

/* ---------------------------------------------------------
   Basic Elements
--------------------------------------------------------- */
a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font-family: inherit;
}

button {
    cursor: pointer;
}

img {
    max-width: 100%;
    display: block;
}

/* ---------------------------------------------------------
   Layout กลาง
--------------------------------------------------------- */
.site-main {
    min-height: 60vh;
}

.section {
    padding: 80px 20px;
}

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

.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 42px auto;
}

.section-header h2 {
    font-size: 38px;
    line-height: 1.2;
    color: var(--black);
    margin-bottom: 14px;
    letter-spacing: -0.04em;
}

.section-header p {
    color: var(--text-muted);
    font-size: 17px;
}

/* ---------------------------------------------------------
   Header
--------------------------------------------------------- */
.site-header {
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.85);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 15px 20px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--black);
    white-space: nowrap;
}

.site-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 13px;
    background: var(--primary-color);
    color: var(--white);

    display: inline-flex;
    align-items: center;
    justify-content: center;

    box-shadow: 0 8px 20px rgba(255, 90, 95, 0.35);
}

.site-logo-text {
    font-size: 19px;
    letter-spacing: -0.03em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 26px;
}

.site-nav a {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 15px;
    transition: 0.2s ease;
}

.site-nav a:hover {
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-switch {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 700;
    background: var(--white);
}

.language-switch a {
    color: var(--text-muted);
}

.language-switch a.active {
    color: var(--primary-color);
}

/* ---------------------------------------------------------
   Buttons
--------------------------------------------------------- */
.btn {
    min-height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    border: none;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;

    font-size: 14px;
    font-weight: 700;
    transition: 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: 0 10px 22px rgba(255, 90, 95, 0.28);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-light {
    background: var(--white);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-light:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.btn-soft:hover {
    background: #ffe2e4;
}

.btn-block {
    width: 100%;
}

/* ---------------------------------------------------------
   Hamburger
--------------------------------------------------------- */
.hamburger-btn {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--white);

    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.hamburger-btn span {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--black);
    display: block;
}

/* ---------------------------------------------------------
   Mobile Menu
--------------------------------------------------------- */
.mobile-menu {
    display: none;
    padding: 0 20px 18px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--white);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 13px 0;
    color: var(--text-main);
    font-weight: 700;
    border-bottom: 1px solid #f3f4f6;
}

.mobile-auth {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    padding-top: 14px;
}

.mobile-auth a {
    border-bottom: none;
}

/* ---------------------------------------------------------
   Card กลาง
--------------------------------------------------------- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-card);
}

.card-hover {
    transition: 0.22s ease;
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(255, 90, 95, 0.28);
}

/* ---------------------------------------------------------
   Badge
--------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 25px;
    padding: 0 10px;
    border-radius: 999px;

    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.badge-free {
    background: #ecfdf5;
    color: #059669;
}

.badge-premium {
    background: #fff7ed;
    color: #ea580c;
}

/* ---------------------------------------------------------
   Form
--------------------------------------------------------- */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    color: var(--text-main);
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-control {
    width: 100%;
    height: 48px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    padding: 0 15px;
    outline: none;
    font-size: 15px;
    background: var(--white);
    transition: 0.18s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 90, 95, 0.12);
}

textarea.form-control {
    min-height: 130px;
    padding-top: 14px;
    resize: vertical;
}

/* ---------------------------------------------------------
   Footer
--------------------------------------------------------- */
.site-footer {
    background: #fafafa;
    border-top: 1px solid var(--border-color);
    padding: 58px 20px 22px 20px;
}

.footer-container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;

    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 36px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--black);
    font-weight: 800;
    margin-bottom: 14px;
}

.footer-brand p {
    color: var(--text-muted);
    max-width: 420px;
}

.footer-links h4 {
    color: var(--black);
    font-size: 15px;
    margin-bottom: 12px;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 9px;
    font-size: 14px;
    transition: 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    width: 100%;
    max-width: var(--container-width);
    margin: 36px auto 0 auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}

/* ---------------------------------------------------------
   Tool Card กลาง
--------------------------------------------------------- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.tool-card {
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.tool-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.tool-icon {
    width: 54px;
    height: 54px;
    border-radius: 18px;
    background: var(--primary-soft);
    color: var(--primary-color);

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 26px;
}

.tool-card h3 {
    color: var(--black);
    font-size: 20px;
    letter-spacing: -0.03em;
}

.tool-card p {
    color: var(--text-muted);
    font-size: 15px;
    min-height: 48px;
}

.tool-card-link {
    margin-top: auto;
    color: var(--primary-color);
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ---------------------------------------------------------
   Responsive
--------------------------------------------------------- */
@media (max-width: 1024px) {
    .site-nav {
        gap: 16px;
    }

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

    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 820px) {
    .site-nav,
    .header-actions .btn {
        display: none;
    }

    .hamburger-btn {
        display: flex;
    }

    .header-container {
        padding: 13px 16px;
    }

    .language-switch {
        display: flex;
    }

    .section {
        padding: 58px 16px;
    }

    .section-header h2 {
        font-size: 30px;
    }
}

@media (max-width: 640px) {
    body {
        font-size: 15px;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .site-logo-text {
        font-size: 17px;
    }

    .language-switch {
        font-size: 12px;
        padding: 7px 9px;
    }

    .section-header h2 {
        font-size: 27px;
    }
}