/* ==========================================================
   STUST Website Update Suggestions - Applied Modern Theme
   Final direction: off-white / navy / muted blue / gold accent
   Scope: #form1 / .modern-suggestion-page
   ========================================================== */

:root {
  --stust-navy-900: #0f2f55;
  --stust-navy-800: #173f6a;
  --stust-navy-700: #245487;
  --stust-blue-500: #4f82bf;
  --stust-blue-300: #9fc0e6;
  --stust-blue-100: #eaf2fb;
  --stust-blue-050: #f4f8fc;
  --stust-gold: #cd9f6f;
  --stust-gold-soft: #cd9f6f; /*#f5e6c5*/;
  --surface: #ffffff;
  --page-bg: #f3f6fa;
  --text: #16314f;
  --text-2: #6a747e; /*#5b7392;*/
  --text-3: #8ca0ba;
  --border: #c9d7e8;
  --border-focus: #3c70ae;
  --error: #c94747;
  --success: #33825c;
  --card-shadow: 0 24px 64px rgba(25, 55, 94, 0.10);
  --control-shadow: 0 0 0 4px rgba(36, 84, 135, 0.10);
  --radius-card: 28px;
  --radius-control: 13px;
  --radius-notice: 18px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-width: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", Arial, sans-serif;
  background:
    radial-gradient(circle at 11% 56%, rgba(83, 132, 194, .18) 0 10.5rem, transparent 10.7rem),
    radial-gradient(circle at 96% 78%, rgba(28, 68, 118, .20) 0 14rem, transparent 14.2rem),
    linear-gradient(132deg, rgba(255,255,255,.72), rgba(228,237,248,.42) 48%, rgba(255,255,255,.72)),
    var(--page-bg);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background:
    linear-gradient(138deg, transparent 0 16%, rgba(36,84,135,.035) 16% 29%, transparent 29% 49%, rgba(36,84,135,.028) 49% 65%, transparent 65%),
    linear-gradient(40deg, transparent 0 72%, rgba(79,130,191,.045) 72% 82%, transparent 82%);
}

body::after {
  background:
    radial-gradient(circle at 96% 5%, rgba(20,56,101,.88) 0 7.2rem, transparent 7.35rem),
    radial-gradient(circle at -1% 92%, rgba(24,63,111,.82) 0 10rem, transparent 10.2rem);
  opacity: .95;
}

/* Keep ASP.NET hidden fields / postback mechanics untouched. */
#form1 { position: relative; z-index: 1; }
.aspNetHidden { display: none; }

.modern-suggestion-page {
  position: relative;
  width: min(100%, 1680px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 46px 34px 58px;
}

/* Decorative dots */
.modern-suggestion-page::before,
.modern-suggestion-page::after {
  content: "";
  position: absolute;
  width: 116px;
  height: 94px;
  background-image: radial-gradient(rgba(36,84,135,.22) 1.6px, transparent 1.7px);
  background-size: 19px 19px;
  pointer-events: none;
}

.modern-suggestion-page::before { left: 46px; top: 90px; }
.modern-suggestion-page::after { right: 48px; bottom: 106px; }

/* Side copy is decorative only and disappears before tablet widths. */
.suggestion-side {
  position: absolute;
  top: 105px;
  width: 250px;
  color: var(--text-2);
  z-index: 1;
}

.suggestion-side--left { left: 44px; }
.suggestion-side--right { right: 38px; top: 216px; }

.suggestion-side .hero-copy {
  margin: 0;
  font-size: clamp(2.8rem, 4.25vw, 4.9rem);
  line-height: .95;
  font-weight: 750;
  letter-spacing: -.045em;
  color: rgba(39,83,137,.58);
}

.suggestion-side .hero-copy .accent { color: var(--stust-gold); }

.suggestion-side .side-rule {
  width: 46px;
  height: 3px;
  margin: 19px 0 20px;
  border-radius: 999px;
  background: var(--stust-gold);
}

.suggestion-side p { margin: 0; }
.suggestion-side .side-zh {
  font-size: 1.12rem;
  line-height: 1.68;
  font-weight: 700;
  color: var(--stust-navy-800);
}
.suggestion-side .side-en {
  margin-top: 10px;
  font-size: .98rem;
  line-height: 1.55;
  color:#5b7392;
  /*color: var(--text-2);*/
}
.suggestion-side .quote-mark {
  font: 700 5.7rem/1 Georgia, serif;
  color: rgb(205 159 111);
  /*color: rgba(215,166,78,.92); */
  margin-bottom: 3px;
}

.suggestion-side .stust-disc {
  margin-top: 156px;
  width: 250px;
  height: 250px;
  margin-left: auto;
  padding: 56px 48px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, #234f82, #0f315b 78%);
  box-shadow: 0 24px 55px rgba(15,47,85,.12);
  position: relative;
  overflow: hidden;
}
.suggestion-side .stust-disc::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1.5px solid rgba(215,166,78,.82);
  border-radius: 50%;
}
.suggestion-side .stust-disc strong,
.suggestion-side .stust-disc span { position: relative; z-index: 1; display: block; }
.suggestion-side .stust-disc strong { font-size: 1.7rem; letter-spacing: .2em; margin-bottom: 22px;color:#cd9f6f; /*margin-bottom: 22px;*/ }
.suggestion-side .stust-disc span { font-size: .9rem; line-height: 1.8; letter-spacing: .24em; }

/* Main card */
.suggestion-card {
  position: relative;
  z-index: 2;
  width: min(900px, calc(100% - 560px));
  min-width: 700px;
  margin: 0 auto;
  padding: 42px 50px 44px;
  background: rgba(255,255,255,.965);
  border: 1px solid rgba(195,210,228,.68);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(7px);
}

.suggestion-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 22px;
  /*margin-bottom: 18px;*/	
}
.suggestion-title-row h1 {
  margin: 0;
  color: var(--stust-navy-900);
  font-size: clamp(2rem, 36px, 2.85rem);
  /*font-size: clamp(2rem, 3vw, 2.85rem);*/
  line-height: 1.12;
  font-weight: 700;
  /*font-weight: 800;*/
  letter-spacing: -.035em;
}
.suggestion-title-divider {
  width: 2px;
  height: 42px;
  flex: 0 0 2px;
  background: var(--stust-gold);
  border-radius: 999px;
}
.suggestion-title-en {
  color: var(--stust-navy-900);
	
  font-size: clamp(1.25rem, 22px, 1.65rem);
	/*font-size: clamp(1.25rem, 1.8vw, 1.65rem);*/
  line-height: 1.5;
	/*  line-height: 1.2;*/
  font-weight: 300;
	/*font-weight: 650;*/
}

.suggestion-intro { margin-bottom: 26px; }
.suggestion-intro p { margin: 0; }
.suggestion-intro .intro-zh {
  color: var(--stust-navy-800);
  font-size: 1rem;
  line-height: 1.75;
  font-weight: 400;
  /*font-weight: 650;*/
}
.suggestion-intro .intro-en {
  margin-top: 5px;
  color: var(--text-2);
  font-size: 14px;
	/*font-size: .95rem;*/
  line-height: 1.58;
  font-weight: 300;	
}

.suggestion-field { margin: 0 0 19px; }
.suggestion-label {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 10px;
  color: var(--stust-navy-900);
  cursor: pointer;
}
.field-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 11px;
  background: linear-gradient(180deg, #eff6ff, #dceafa);
  color: var(--stust-navy-800);
}
.field-icon svg { width: 20px; height: 20px; stroke: currentColor; }
.suggestion-label .label-zh { font-size: 1rem; font-weight: 500;/*font-size: 1rem; font-weight: 750;*/ }
.suggestion-label .label-rule { width: 42px; height: 1px; background: rgba(36,84,135,.45); }
.suggestion-label .label-en { color: var(--text-2); font-size: .96rem; font-weight: 400; /*font-weight: 500;*/ }
.required-mark { color: var(--error); margin-left: 4px; }

/* Exact original control IDs. !important is intentional: old page uses inline width/height. */
#TextBox1,
#TextBox3,
#DropDownList1,
#TextBox5 {
  display: block;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-control) !important;
  background: #fff;
  color: var(--text);
  font: 400 1rem/1.4 inherit;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
#TextBox1,
#TextBox3,
#DropDownList1 {
  height: 52px !important;
  padding: 0 16px !important;
}
#TextBox5 {
  height: auto !important;
  min-height: 132px !important;
  padding: 15px 16px !important;
  line-height: 1.65 !important;
  resize: vertical;
}
#TextBox1::placeholder,
#TextBox3::placeholder,
#TextBox5::placeholder { color: var(--text-3); opacity: 1; }
#TextBox1:hover,
#TextBox3:hover,
#DropDownList1:hover,
#TextBox5:hover { border-color: #aebfd3 !important; }
#TextBox1:focus,
#TextBox3:focus,
#DropDownList1:focus,
#TextBox5:focus,
#TextBox1:focus-visible,
#TextBox3:focus-visible,
#DropDownList1:focus-visible,
#TextBox5:focus-visible {
  border-color: var(--border-focus) !important;
  box-shadow: var(--control-shadow);
}
#DropDownList1 {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 48px !important;
  background-color: #fff;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--stust-navy-800) 50%),
    linear-gradient(135deg, var(--stust-navy-800) 50%, transparent 50%);
  background-position:
    calc(100% - 23px) calc(50% - 3px),
    calc(100% - 17px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.student-notice {
  display: grid;
  grid-template-columns: 1fr 112px;
  align-items: center;
  gap: 18px;
  margin: -2px 0 20px;
  padding: 18px 18px 18px 22px;
  border: 1px solid #c6daef;
  border-radius: var(--radius-notice);
  background:
    radial-gradient(circle at 92% 50%, rgba(79,130,191,.10) 0 56px, transparent 57px),
    linear-gradient(180deg, #f1f7fe, #eaf3fd);
}
.student-notice p { margin: 0; }
.student-notice .notice-zh {
  color: var(--stust-navy-900);
  font-size: .98rem;
  line-height: 1.65;
  font-weight: 500;
  /*font-weight: 700;*/
}
.student-notice .notice-en {
  margin-top: 5px;
  color: var(--text-2);
  font-size: .91rem;
  line-height: 1.5;
}
.student-notice a { color: #1454b3; font-weight: 600;/*font-weight: 800;*/ text-decoration: underline; text-underline-offset: 2px; }
.notice-icon-wrap { display: flex; align-items: center; justify-content: center; }
.notice-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: linear-gradient(180deg, #265995, #123a69);
  color: #fff;
  font: 800 2.8rem/1 Arial, sans-serif;
  box-shadow: 0 10px 24px rgba(17,57,104,.16);
}

.captcha-actions {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 20px;
  align-items: end;
  margin-top: 3px;
}
.captcha-shell {
  min-width: 0;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
/* Remove old inline 0.85 scale so the native widget remains legible. */
.g-recaptcha { transform: none !important; -webkit-transform: none !important; transform-origin: 0 0 !important; }

.form-actions {
  display: grid;
  grid-template-columns: 150px minmax(220px, 1fr);
  gap: 14px;
  align-items: center;
}
#Button1,
#Button3 {
  appearance: none;
  -webkit-appearance: none;
  height: 52px;
  margin: 0 !important;
  padding: 0 20px;
  border-radius: 14px;
  font-family: inherit;
  font-size: .98rem;
  font-weight: 750;
  letter-spacing: .01em;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
#Button3 {
  color: var(--stust-navy-800);
  background: #fff;
  border: 1px solid #b9c9dc;
  box-shadow: 0 5px 14px rgba(17,57,104,.05);
}
#Button3:hover { border-color: var(--stust-navy-700); background: #f8fbff; }
#Button1 {
  color: #fff;
  background: linear-gradient(135deg, #22578f, #0f315a);
  border: 1px solid transparent;
  box-shadow: 0 9px 22px rgba(15,49,90,.18);
}
#Button1:hover { transform: translateY(-1px); box-shadow: 0 12px 25px rgba(15,49,90,.23); }
#Button1:active,
#Button3:active { transform: translateY(0); }
#Button1:focus-visible,
#Button3:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(36,84,135,.14); }

/* jQuery Validate. Keep real labels visible; only error labels use these classes. */
label.error,
.field-error {
  display: block;
  margin: 7px 0 0 !important;
  padding: 8px 11px;
  color: var(--error) !important;
  background: rgba(201,71,71,.055) !important;
  border: 1px solid rgba(201,71,71,.16);
  border-radius: 9px;
  font-size: .88rem;
  line-height: 1.4;
  background-image: none !important;
}
label.valid { display: none !important; background-image: none !important; }
input.error,
select.error,
textarea.error { border-color: var(--error) !important; box-shadow: 0 0 0 4px rgba(201,71,71,.07); }

/* Old saved layout classes are neutralized only inside this page. */
#form1 .body,
#form1 .wrap,
#form1 .banner,
#form1 .title,
#form1 .content,
#form1 .footer {
  width: auto !important;
  height: auto !important;
  line-height: normal !important;
  float: none !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  text-align: left !important;
}
#BannerImage { display: none !important; }

/* Accessibility */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}


/* ==========================================================
   jQuery Validate 錯誤提示與驗證樣式修正
   ========================================================== */

/* 1. 當輸入框驗證失敗時，外框變紅並加上淡紅色微光 */
input.error,
select.error,
textarea.error {
    border-color: var(--error) !important;
    box-shadow: 0 0 0 3px rgba(201, 71, 71, 0.15) !important;
}

/* 2. 錯誤提示訊息標籤 (label.error) */
label.error,
.field-error {
    display: flex !important;
    align-items: center;
    gap: 6px;
    width: 100%;
    margin: 8px 0 0 0 !important;
    padding: 8px 12px !important;
    color: #c94747 !important;
    background-color: #fdf2f2 !important;
    border: 1px solid rgba(201, 71, 71, 0.25) !important;
    border-radius: 8px !important;
    font-size: 0.85rem !important;
    line-height: 1.4 !important;
    font-weight: 500;
    box-sizing: border-box;
    position: relative;
    z-index: 5;
}

    /* 3. 使用純 CSS 畫出前方的 ⚠️ 警告圖示，不依賴外部圖片 */
    label.error::before {
        content: "⚠️";
        font-size: 0.9rem;
        flex-shrink: 0;
    }

/* 4. 隱藏成功的 label */
label.valid {
    display: none !important;
}


@media (max-width: 1360px) {
  .suggestion-side { display: none; }
  .suggestion-card {
    width: min(900px, 100%);
    min-width: 0;
  }
}

@media (max-width: 900px) {
  .modern-suggestion-page { padding: 26px 20px 40px; }
  .suggestion-card { padding: 34px 30px 36px; }
  .captcha-actions { grid-template-columns: 1fr; }
  .form-actions { grid-template-columns: 1fr 1.5fr; }
}

@media (max-width: 680px) {
  .modern-suggestion-page { padding: 14px 12px 28px; }
  .suggestion-card { padding: 26px 18px 26px; border-radius: 22px; }
  .suggestion-title-row { gap: 10px 14px; }
  .suggestion-title-row h1 { font-size: 2rem; width: 100%; }
  .suggestion-title-divider { width: 42px; height: 2px; flex: 0 0 42px; }
  .suggestion-title-en { font-size: 1.2rem; }
  .suggestion-label { gap: 9px; }
  .field-icon { width: 34px; height: 34px; flex-basis: 34px; }
  .suggestion-label .label-rule { width: 26px; }
  .student-notice { grid-template-columns: 1fr; padding: 16px; }
  .notice-icon-wrap { justify-content: flex-start; }
  .notice-icon { width: 62px; height: 62px; font-size: 2.25rem; }
  .form-actions { grid-template-columns: 1fr; }
  #Button1,
  #Button3 { width: 100%; }
  .captcha-shell { overflow-x: auto; }
}

@media (max-width: 430px) {
  .suggestion-card { padding: 22px 15px; }
  .suggestion-intro .intro-zh { font-size: .96rem; }
  .suggestion-intro .intro-en { font-size: .9rem; }
  .suggestion-label .label-rule { display: none; }
  .suggestion-label .label-en { width: calc(100% - 46px); margin-left: 46px; margin-top: -6px; }
  #TextBox1,
  #TextBox3,
  #DropDownList1 { height: 50px !important; font-size: 16px; }
  #TextBox5 { min-height: 120px !important; font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}