/* =========================================================
   Animation Degree College — Custom Styles
   ========================================================= */

:root {
  --clr-bg: #ffffff;
  --clr-bg-alt: #f5f7fd;
  --clr-card: #ffffff;
  --clr-card-alt: #f0f3fb;
  --clr-orange: #f2b111;
  --clr-orange-2: #f6c94f;
  --clr-blue: #bf1e2e;
  --clr-blue-2: #d94452;
  --clr-heading: #171b2e;
  --clr-text-light: #2a3050;
  --clr-text-muted: #626a85;
  --clr-border: rgba(23, 27, 46, 0.09);
  --gradient-primary: linear-gradient(
    135deg,
    var(--clr-orange) 0%,
    var(--clr-blue) 100%
  );
  --gradient-soft: linear-gradient(
    135deg,
    rgba(242, 177, 17, 0.1) 0%,
    rgba(191, 30, 46, 0.08) 100%
  );
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 50px rgba(23, 27, 46, 0.12);
  --transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--clr-bg);
  color: var(--clr-text-light);
  overflow-x: hidden;
  width: 100%;
  position: relative;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3,
h4,
h5,
.display-font {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  letter-spacing: -0.5px;
}

p {
  color: var(--clr-text-muted);
}

a {
  text-decoration: none;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.bg-gradient-primary {
  background: var(--gradient-primary);
}

.section-padding {
  padding: 100px 0;
}
@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
}

.section-badge {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 50px;
  background: rgba(242, 177, 17, 0.1);
  border: 1px solid rgba(242, 177, 17, 0.3);
  color: var(--clr-orange);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin-bottom: 18px;
  color: var(--clr-heading);
}

.section-sub {
  max-width: 680px;
  margin: 0 auto;
  color: var(--clr-text-muted);
}

/* =========== BUTTONS =========== */
.btn {
  border-radius: 50px;
  font-weight: 600;
  padding: 12px 30px;
  transition: var(--transition);
  border: none;
}

.btn-gradient {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 10px 25px rgba(242, 177, 17, 0.3);
}
.btn-gradient:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(242, 177, 17, 0.45);
  color: #fff;
}

.btn-outline-light-custom {
  background: rgba(255, 255, 255, 0.12);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-outline-light-custom:hover {
  background: #fff;
  color: var(--clr-orange);
  transform: translateY(-3px);
}

.btn-sm-pill {
  padding: 8px 20px;
  font-size: 0.9rem;
  border-radius: 50px;
}

/* =========== NAVBAR =========== */
.navbar {
  padding: 18px 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.navbar > .container {
  flex-wrap: nowrap;
}

.navbar.scrolled {
  padding: 10px 0;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 30px rgba(23, 27, 46, 0.1);
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--clr-heading) !important;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 1;
  min-width: 0;
}

@media screen and (max-width: 600px) {
  .navbar-brand {
    font-size: 1rem;
  }
}

.navbar-brand .brand-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.navbar-brand .brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  flex-shrink: 0;
}

.navbar-toggler {
  flex-shrink: 0;
}

@media (max-width: 420px) {
  .navbar-brand {
    font-size: 1rem;
    gap: 8px;
  }
  .navbar-brand .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }
}
@media (max-width: 360px) {
  .navbar-brand {
    font-size: 0.88rem;
  }
}

.navbar-nav .nav-link {
  color: var(--clr-text-light) !important;
  font-weight: 500;
  margin: 0 10px;
  position: relative;
  transition: var(--transition);
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 100%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--clr-orange) !important;
}

.navbar-toggler {
  border: none;
  color: var(--clr-heading);
  font-size: 1.5rem;
}
.navbar-toggler:focus {
  box-shadow: none;
}

/* =========== HERO SLIDER =========== */
.hero-slider {
  height: 100vh;
  min-height: 640px;
  position: relative;
}

.hero-slider .carousel-item {
  height: 100vh;
  min-height: 640px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-slider .carousel-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(23, 27, 46, 0.85) 10%,
    rgba(23, 27, 46, 0.55) 55%,
    rgba(242, 177, 17, 0.35) 100%
  );
}

.hero-caption {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 720px;
  padding-top: 70px;
}

.hero-caption .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 22px;
  width: fit-content;
}

.hero-caption h1 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  color: #fff;
  margin-bottom: 20px;
  line-height: 1.15;
}

.hero-caption p {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: #f1f2f8;
  opacity: 0.95;
  margin-bottom: 32px;
}

.hero-slider .carousel-control-prev,
.hero-slider .carousel-control-next {
  width: 60px;
  height: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  opacity: 0.85;
}
.hero-slider .carousel-control-prev {
  left: 30px;
}
.hero-slider .carousel-control-next {
  right: 30px;
}
.hero-slider .carousel-control-prev:hover,
.hero-slider .carousel-control-next:hover {
  opacity: 1;
  background: var(--gradient-primary);
}

.hero-slider .carousel-indicators {
  bottom: 30px;
  z-index: 3;
}
.hero-slider .carousel-indicators [data-bs-target] {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  margin: 0 6px;
}
.hero-slider .carousel-indicators .active {
  background: var(--clr-orange);
  width: 30px;
  border-radius: 50px;
}

.scroll-down {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: #fff;
  opacity: 0.85;
  font-size: 1.6rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translate(-50%, 0);
  }
  40% {
    transform: translate(-50%, -12px);
  }
  60% {
    transform: translate(-50%, -6px);
  }
}

/* =========== ABOUT =========== */
.about-img-wrap {
  position: relative;
}

.about-img-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  position: relative;
}
.about-img-main img {
  width: 100%;
  display: block;
  height: 100%;
  object-fit: cover;
}

.about-floating-card {
  position: absolute;
  bottom: -30px;
  right: -20px;
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 20px 26px;
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 260px;
}
@media (max-width: 767px) {
  .about-floating-card {
    position: static;
    margin-top: 20px;
    max-width: 100%;
  }
}

.about-floating-card .icon-box {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  flex-shrink: 0;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--clr-text-light);
}
.about-list li i {
  color: var(--clr-orange);
  font-size: 1.2rem;
  margin-top: 2px;
}

/* =========== COUNTERS =========== */
.counter-box {
  text-align: center;
  padding: 24px 10px;
  border-radius: var(--radius-md);
  background: var(--gradient-soft);
  border: 1px solid var(--clr-border);
  transition: var(--transition);
}
.counter-box:hover {
  transform: translateY(-6px);
  border-color: rgba(242, 177, 17, 0.35);
  box-shadow: var(--shadow-soft);
}
.counter-box .counter-num {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.counter-box .counter-label {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* =========== GLASS CARD BASE =========== */
.glass-card {
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(23, 27, 46, 0.06);
  transition: var(--transition);
}

/* =========== COURSES =========== */
.course-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--clr-border);
  box-shadow: 0 10px 30px rgba(23, 27, 46, 0.06);
  height: 100%;
  transition: var(--transition);
  position: relative;
}
.course-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(242, 177, 17, 0.35);
}

.course-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.course-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.course-card:hover .course-img-wrap img {
  transform: scale(1.1);
}

.course-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 55%,
    rgba(23, 27, 46, 0.55) 100%
  );
}

.course-duration-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(23, 27, 46, 0.1);
  color: var(--clr-heading);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
}

.course-body {
  padding: 26px;
}
.course-body h4 {
  color: var(--clr-heading);
  margin-bottom: 10px;
  font-size: 1.25rem;
}
.course-body p {
  font-size: 0.92rem;
  margin-bottom: 20px;
  min-height: 66px;
}

.course-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.course-btns .btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 0.85rem;
  white-space: nowrap;
}
.course-btns .btn-outline-light-custom {
  background: var(--clr-card-alt);
  border: 1.5px solid var(--clr-border);
  color: var(--clr-heading);
}
.course-btns .btn-outline-light-custom:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
}

/* Outline button variant for use on light/white section backgrounds */
.btn-outline-brand {
  background: var(--clr-card-alt);
  border: 1.5px solid var(--clr-border);
  color: var(--clr-heading);
}
.btn-outline-brand:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
  transform: translateY(-3px);
}

/* =========== WHY CHOOSE US =========== */
.feature-card {
  padding: 34px 26px;
  border-radius: var(--radius-md);
  height: 100%;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(242, 177, 17, 0.4);
  box-shadow: var(--shadow-soft);
}
.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 10px 25px rgba(242, 177, 17, 0.3);
}
.feature-card h5 {
  color: var(--clr-heading);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* =========== CTA SECTION =========== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(120deg, #f2b111 0%, #d9451c 45%, #bf1e2e 100%);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("https://images.unsplash.com/photo-1550745165-9bc0b252726f?q=80&w=1600&auto=format&fit=crop")
    center/cover;
  mix-blend-mode: overlay;
  opacity: 0.5;
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
}
.cta-content h2 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.cta-content p {
  color: rgba(255, 255, 255, 0.92);
  max-width: 640px;
  margin: 0 auto 34px;
}
.cta-content .btn-outline-light-custom {
  border-color: #fff;
}

/* =========== CONTACT =========== */
.contact-info-card {
  padding: 26px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}
.contact-info-card .icon-box {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  flex-shrink: 0;
}
.contact-info-card h6 {
  color: var(--clr-heading);
  margin-bottom: 6px;
}
.contact-info-card p {
  margin-bottom: 0;
}
.contact-info-card a {
  color: var(--clr-text-muted);
}
.contact-info-card a:hover {
  color: var(--clr-orange);
}

.map-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 260px;
  border: 1px solid var(--clr-border);
  box-shadow: 0 10px 30px rgba(23, 27, 46, 0.06);
}
.map-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-form-card {
  padding: 40px;
  border-radius: var(--radius-lg);
}
@media (max-width: 576px) {
  .contact-form-card {
    padding: 26px;
  }
}

.form-control,
.form-select {
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-border);
  color: var(--clr-heading);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}
.form-control:focus,
.form-select:focus {
  background: #ffffff;
  border-color: var(--clr-orange);
  box-shadow: 0 0 0 3px rgba(242, 177, 17, 0.15);
  color: var(--clr-heading);
}
.form-control::placeholder {
  color: var(--clr-text-muted);
}
.form-label {
  color: var(--clr-text-light);
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.form-select option {
  background: #ffffff;
}

/* =========== FOOTER =========== */
.footer {
  background: var(--clr-bg-alt);
  border-top: 1px solid var(--clr-border);
  padding: 70px 0 0;
}
.footer h5 {
  color: var(--clr-heading);
  margin-bottom: 22px;
  font-size: 1.15rem;
}
.footer .footer-desc {
  font-size: 0.92rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  color: var(--clr-text-muted);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover {
  color: var(--clr-orange);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--clr-text-muted);
  font-size: 0.92rem;
}
.footer-contact li i {
  color: var(--clr-orange);
  margin-top: 3px;
}

.footer-bottom {
  margin-top: 50px;
  padding: 22px 0;
  border-top: 1px solid var(--clr-border);
  text-align: center;
  font-size: 0.88rem;
  color: var(--clr-text-muted);
}
.footer-bottom a {
  color: var(--clr-orange);
}

/* Simplified footer (copyright only) */
.footer.footer-simple {
  padding: 26px 0;
  text-align: center;
}
.footer.footer-simple p {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
}

/* Larger map for contact section when form is removed */
.map-wrap-large {
  height: 100%;
  min-height: 360px;
}
@media (max-width: 991px) {
  .map-wrap-large {
    min-height: 320px;
    margin-top: 10px;
  }
}

/* =========== FLOATING BUTTONS =========== */
.floating-btns {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.floating-btn {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  box-shadow: 0 10px 25px rgba(23, 27, 46, 0.25);
  transition: var(--transition);
  position: relative;
}
.floating-btn:hover {
  transform: scale(1.1);
  color: #fff;
}
.floating-btn.call-btn {
  background: var(--gradient-primary);
  animation: pulse-orange 2.2s infinite;
}

@keyframes pulse-orange {
  0% {
    box-shadow: 0 0 0 0 rgba(242, 177, 17, 0.5);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(242, 177, 17, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(242, 177, 17, 0);
  }
}

/* =========== FLOATING ENQUIRE NOW (Right Center, Vertical Tab) =========== */
.floating-enquire-wrap {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 999;
  width: 48px;
  height: 196px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-enquire-btn {
  width: 196px;
  height: 48px;
  transform: rotate(-90deg);
  transform-origin: center center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  padding: 0 22px;
  border-radius: 12px 12px 0 0;
  box-shadow: 0 -6px 20px rgba(23, 27, 46, 0.25);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: var(--transition);
}
.floating-enquire-btn i {
  font-size: 1.15rem;
}
.floating-enquire-btn:hover {
  box-shadow: 0 -8px 24px rgba(242, 177, 17, 0.5);
  color: #fff;
  filter: brightness(1.05);
}
@media (max-width: 576px) {
  .floating-enquire-wrap {
    width: 40px;
    height: 168px;
  }
  .floating-enquire-btn {
    width: 168px;
    height: 40px;
    padding: 0 16px;
    font-size: 0.82rem;
    gap: 6px;
  }
  .floating-enquire-btn i {
    font-size: 1rem;
  }
}

/* =========== ENQUIRY MODAL =========== */
.enquiry-modal .modal-content {
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.enquiry-modal .modal-header {
  background: var(--gradient-primary);
  border: none;
  padding: 24px 30px;
}
.enquiry-modal .modal-title {
  color: #fff;
  font-weight: 700;
}
.enquiry-modal .btn-close {
  filter: invert(1);
}
.enquiry-modal .modal-body {
  padding: 30px;
}

/* =========== BACK TO TOP =========== */
.back-to-top {
  position: fixed;
  bottom: 26px;
  left: 26px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--clr-border);
  color: var(--clr-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 998;
  box-shadow: 0 10px 25px rgba(23, 27, 46, 0.12);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--gradient-primary);
  color: #fff;
}

/* =========== MISC =========== */
::selection {
  background: var(--clr-orange);
  color: #fff;
}

.preloader {
  position: fixed;
  inset: 0;
  background: #ffffff;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity 0.5s ease,
    visibility 0.5s ease;
}
.preloader.hide {
  opacity: 0;
  visibility: hidden;
}
.loader-ring {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(242, 177, 17, 0.15);
  border-top-color: var(--clr-orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--clr-bg-alt);
}
::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 10px;
}

.visible-md {
  display: block;
}
.visible-sm {
  display: none;
}

@media screen and (max-width: 600px) {
  .visible-md {
    display: none;
  }
  .visible-sm {
    display: block;
  }
}