/**
 * 基礎樣式 - 忠泰大華企業
 * 全站通用的基礎樣式設定
 */

/* ===== 本地字體載入 ===== */
@font-face {
  font-family: "Noto Serif CJK TC";
  src: url("../font/NotoSerifCJKtc-SemiBold.otf") format("opentype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* Stevie Sans 黑體 */
@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Thin.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Thin.otf") format("opentype");
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Light.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Light.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Book.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Book.otf") format("opentype");
  font-weight: 450;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Medium.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Medium.otf") format("opentype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Bold.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Stevie Sans";
  src: url("../font/TTF/Stevie Sans Black.ttf") format("truetype"),
       url("../font/OTF/Stevie Sans Black.otf") format("opentype");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* ===== HTML & Body ===== */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-gray-800);
  background-color: var(--color-white);
}

/* ===== 標題樣式 ===== */
h1,
.h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

h2,
.h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

h3,
.h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
}

h4,
.h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

h5,
.h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

h6,
.h6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

/* ===== 段落與文字 ===== */
p {
  margin-bottom: var(--spacing-4);
}

p:last-child {
  margin-bottom: 0;
}

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

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

/* ===== 連結樣式 ===== */
a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

.container-fluid {
  width: 100%;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

/* ===== 區塊間距 ===== */
.section {
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-16);
}

.section-sm {
  padding-top: var(--spacing-12);
  padding-bottom: var(--spacing-12);
}

.section-lg {
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-20);
}

/* ===== 文字對齊 ===== */
.text-left {
  text-align: left;
}

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

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

/* ===== 按鈕基礎樣式 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* 主要按鈕 */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-light);
}

/* 次要按鈕 */
.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-secondary-light);
}

/* 外框按鈕 */
.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 按鈕尺寸 */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* 全寬按鈕 */
.btn-block {
  display: flex;
  width: 100%;
}

/* ===== 圖片 ===== */
.img-fluid {
  max-width: 100%;
  height: auto;
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-contain {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ===== 顯示控制 ===== */
.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-flex {
  display: flex;
}

.d-grid {
  display: grid;
}

/* ===== Flex 工具 ===== */
.flex-row {
  flex-direction: row;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.justify-start {
  justify-content: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-end {
  justify-content: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.align-start {
  align-items: flex-start;
}

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

.align-end {
  align-items: flex-end;
}

.gap-1 {
  gap: var(--spacing-1);
}

.gap-2 {
  gap: var(--spacing-2);
}

.gap-3 {
  gap: var(--spacing-3);
}

.gap-4 {
  gap: var(--spacing-4);
}

.gap-6 {
  gap: var(--spacing-6);
}

.gap-8 {
  gap: var(--spacing-8);
}