/* ----------------------------------------------
   تنظیمات پایه و متغیرها
---------------------------------------------- */
:root {
    --color-bg: #f8f9fa;
    --color-bg-card: #ffffff;
    --color-primary: #007aff;
    --color-accent: #ff4d4d;
    --color-text: #1c1c1e;
    --color-text-light: #6e6e73;
    --color-border: #e5e5ea;

    --radius: 16px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);

    --font-main: 'IRANYekan', 'Vazirmatn', sans-serif;
}

/* ریست و تنظیمات اولیه */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ----------------------------------------------
   ساختار اصلی صفحه
---------------------------------------------- */
.site-wrap {
    display: flex;
    flex-direction: row;
    min-height: 100vh;
}

/* ----------------------------------------------
   سایدبار
---------------------------------------------- */
.sidebar {
    width: 340px;
    background-color: #fff;
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: 20px;
    gap: 16px;
    z-index: 10;
}

/* کارت‌ها داخل سایدبار */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
}

.card-media .thumb {
    position: relative;
}

.card-media img {
    width: 100%;
    border-radius: var(--radius);
}

.play-btn {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 18px;
    box-shadow: var(--shadow);
    transition: 0.3s;
}

.play-btn:hover {
    background-color: #005ad8;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--color-border);
}

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

.meta-label {
    color: var(--color-text-light);
}

.price {
    text-align: center;
}

.price-old {
    text-decoration: line-through;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.price-now {
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.4rem;
    margin: 4px 0;
}

.btn {
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 10px 16px;
    cursor: pointer;
    font-size: 1rem;
    transition: 0.3s;
}

.btn:hover {
    background-color: #005ad8;
}

.btn.ghost {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn.ghost:hover {
    background-color: var(--color-primary);
    color: #fff;
}

.btn.small {
    font-size: 0.85rem;
    padding: 6px 10px;
}

/* .countdown {
    text-align: center;
}

.countdown-title {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.countdown-timer {
    font-family: monospace;
    font-size: 1.2rem;
    color: var(--color-accent);
} */
 .countdown-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 30px 0;
  width: 100%;
}

.countdown-glass {
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  padding: 25px 40px;
  text-align: center;
  font-family: 'IRANYekan', sans-serif;
  color: #fff;
  background-image: linear-gradient(135deg, rgba(0,122,255,0.4), rgba(0,0,0,0.3));
  transition: all 0.3s ease;
}

.countdown-glass:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 122, 255, 0.3);
}

#countdown {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 1.8rem;
  font-weight: bold;
}

.time-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 10px 18px;
  min-width: 65px;
  box-shadow: inset 0 0 10px rgba(255,255,255,0.15);
}

.time-box span {
  font-size: 1.8rem;
  font-weight: 600;
  color: #fff;
}

.time-box small {
  font-size: 0.9rem;
  color: #e0e0e0;
}

.separator {
  font-size: 2rem;
  color: rgba(255,255,255,0.7);
  margin: 0 5px;
}

.countdown-label {
  font-size: 1rem;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 600px) {
  .countdown-glass {
    padding: 15px 20px;
  }
  #countdown {
    flex-wrap: wrap;
    gap: 10px;
  }
  .time-box {
    min-width: 60px;
    padding: 8px 14px;
  }
}


.mobile-footer {
    display: none;
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    background-color: #fff;
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    padding: 8px 12px;
    justify-content: space-between;
    align-items: center;
    z-index: 20;
}

@media (max-width: 992px) {
    .mobile-footer {
        display: flex !important;
    }

    .sidebar {
        display: none !important;
    }
}


.mf-info {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

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

#mf-timer {
    font-family: monospace;
    font-size: 0.95rem;
    color: var(--color-accent);
}

/* ----------------------------------------------
   محتوای اصلی
---------------------------------------------- */
.content {
    flex: 1;
    overflow-y: auto;
    padding: 40px 60px;
}

/* HERO */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 60px;
}

.hero-media img {
    width: 460px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-text {
    flex: 1;
}

.course-title {
    font-size: 2rem;
    margin-bottom: 12px;
}

.course-sub {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* INTRO */
.intro {
    margin-bottom: 60px;
}

.intro h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* CURRICULUM */
.curriculum {
    margin-bottom: 60px;
}

.curriculum h2 {
    margin-bottom: 16px;
}

.accordion-item {
  margin-bottom: 18px;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(0, 0, 0, 0.2);
  transition: all 0.4s ease;
}

.accordion-item.active {
  border-color: var(--color-primary);
  background: rgba(0, 122, 255, 0.15);
  box-shadow: 0 0 20px rgba(0, 122, 255, 0.4);
}

/* دکمه فصل */
.accordion-toggle {
  width: 100%;
  background: rgba(240, 240, 240, 0.9);
  border: none;
  padding: 18px 22px;
  text-align: right;
  font-size: 1.1rem;
  font-weight: bold;
  color: #1c1c1e;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.4s ease;
}

.accordion-toggle:hover {
  background: rgba(240, 240, 240, 1);
}

.accordion-item.active .accordion-toggle {
  background: var(--color-primary);
  color: white;
}

/* فلش انیمیشنی */
.accordion-toggle::after {
  content: "▾";
  font-size: 1.4rem;
  color: inherit;
  transition: transform 0.4s ease;
}

.accordion-item.active .accordion-toggle::after {
  transform: rotate(180deg);
}

/* محتوای جلسات */
.accordion-panel {
  display: none;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.6);
  animation: fadeIn 0.4s ease;
}

.accordion-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* لیست جلسات */
.lessons-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lesson {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  font-size: 0.95rem;
  margin-bottom: 8px;
  background: rgba(30, 30, 30, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  transition: background 0.3s ease, transform 0.2s ease;
}

.lesson:nth-child(odd) {
  background: rgba(0, 0, 0, 0.05);
}

.lesson:nth-child(even) {
  background: rgba(0, 0, 0, 0.08);
}

.lesson:hover {
  background: rgba(0, 122, 255, 0.1);
  transform: translateY(-2px);
}

.lesson-left {
  font-weight: 500;
}

.lesson-right {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* GUARANTEES */
.guarantees {
    margin-bottom: 60px;
}

.guarantees h2 {
    margin-bottom: 16px;
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.g-item {
    background-color: var(--color-bg-card);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow);
}

.g-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

/* TEACHERS */
.teachers {
    margin-bottom: 60px;
}

.teachers-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.teacher-card {
    flex: 1 1 200px;
    background-color: var(--color-bg-card);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow);
}

.teacher-card img {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 10px;
}

/* FOOTER */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 16px 0;
    text-align: center;
    color: var(--color-text-light);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-actions {
    display: flex;
    gap: 8px;
}

/* ----------------------------------------------
   ریسپانسیو برای موبایل و تبلت
---------------------------------------------- */
@media (max-width: 992px) {
    .sidebar {
        display: none;
    }

    .content {
        padding: 20px;
    }

    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-media img {
        width: 100%;
    }

    .mobile-footer {
        display: flex;
    }

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

/* ====== فوتر موبایل ====== */
.mobile-footer {
  position: fixed;
  bottom: 0;
  right: 0;
  left: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.05);
}

/* متن سمت چپ */
.mf-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mf-meta {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
}

.mf-timer {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(0, 122, 255, 0.08);
  padding: 4px 8px;
  border-radius: 8px;
}

/* دکمه بزرگ ثبت‌نام */
.mobile-footer .btn.register.big {
  flex-shrink: 0;
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  padding: 10px 20px;
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
  transition: all 0.2s ease-in-out;
}

.mobile-footer .btn.register.big:hover {
  background: #005fcc;
  transform: translateY(-2px);
}

/* فقط در موبایل نمایش داده شود */
@media (min-width: 768px) {
  .mobile-footer {
    display: none;
  }
}