/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
  --color-primary: #1A2419;
  --color-secondary: #012543;
  --color-action: #2D5A27;
  --color-key: #B39441;
  --color-tertiary: #4A4A4A;
  --color-white: #FFFFFF;
  --color-line: #D2CDC6;
  --color-red: #D32D00;
  --color-bg-light: #F7F5F0;
  --color-form-text: #231815;

  --font-sans: 'Noto Sans JP', sans-serif;
  --font-mincho: 'Yu Mincho', 'YuMincho', serif;
  --font-allison: 'Allison', cursive;
  --font-roboto: 'Roboto', sans-serif;

  --max-width: 1200px;
  --header-height: 80px;
}

/* ========================================
   Reset & Base
   ======================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  color: var(--color-primary);
  line-height: 1.8;
  font-size: 15px;
  background: var(--color-white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ========================================
   Button
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.8px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  padding: 18px 40px;
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

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

.btn--white {
  background: var(--color-white);
  color: var(--color-action);
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.25);
  padding: 16px 40px;
  min-width: 280px;
  height: 60px;
}

.btn--full {
  width: 100%;
}

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--color-action);
  z-index: 1000;
}

.header__inner {
  max-width: 1440px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
}

.header__logo {
  font-weight: 700;
  font-size: 22px;
  color: var(--color-white);
  white-space: nowrap;
  letter-spacing: -1px;
}

.header__nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.header__nav a {
  color: var(--color-white);
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.header__nav a:hover {
  opacity: 0.8;
}

.header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-key);
  color: var(--color-white) !important;
  font-weight: 700 !important;
  font-size: 14px !important;
  padding: 10px 24px;
  border-radius: 4px;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.header__cta:hover {
  opacity: 0.85;
}

.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: transform 0.3s, opacity 0.3s;
}

.header__menu-btn.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__menu-btn.is-open span:nth-child(2) {
  opacity: 0;
}

.header__menu-btn.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  padding-top: var(--header-height);
}

.hero__link {
  display: block;
}

.hero__fv {
  display: block;
  width: 100%;
  height: auto;
}

/* ========================================
   Logos
   ======================================== */
.logos {
  width: 100%;
  background: var(--color-white);
  overflow: hidden;
  padding: 2rem 0;
}

.logos__track {
  display: flex;
  align-items: center;
  width: fit-content;
  animation: logos-scroll 30s linear infinite;
}

.logos__img {
  width: 100vw;
  height: auto;
  flex-shrink: 0;
  object-fit: contain;
}

@keyframes logos-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   Problem
   ======================================== */
.problem {
  position: relative;
  background: var(--color-bg-light);
  padding: 80px 32px 100px;
  color: var(--color-primary);
}

.problem__top {
  display: none;
}

.problem__triangle {
  display: none;
}

.problem__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.problem__heading {
  text-align: center;
  margin-bottom: 64px;
  padding-top: 40px;
}

.problem__lead {
  font-family: var(--font-mincho);
  font-size: 32px;
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: -1px;
  margin-bottom: 24px;
  line-height: 1.6;
}

.problem__desc {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-primary);
}

.problem__cards {
  display: flex;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
}

.problem__card {
  flex: 1;
  text-align: center;
  padding: 40px 24px 32px;
  border-right: 1px solid var(--color-line);
}

.problem__card:last-child {
  border-right: none;
}

.problem__card-icon {
  width: 140px;
  height: 105px;
  margin: 0 auto 20px;
  background-image: url('images/Frame 19.svg');
  background-repeat: no-repeat;
  background-size: 720px 200px;
}

.problem__card-icon--1 {
  background-position: -18px 0;
}

.problem__card-icon--2 {
  background-position: -198px 0;
}

.problem__card-icon--3 {
  background-position: -375px 0;
}

.problem__card-icon--4 {
  background-position: -558px 0;
}

.problem__card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.problem__card-text {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.7;
  text-align: center;
  color: var(--color-tertiary);
}

/* ========================================
   CTA Mid
   ======================================== */
.cta-mid {
  background: var(--color-key);
  padding: 64px 32px;
  text-align: center;
}

.cta-mid__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.cta-mid__text {
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 500;
  color: var(--color-white);
  line-height: 1.6;
  letter-spacing: -0.5px;
}

/* ========================================
   Solution
   ======================================== */
.solution {
  position: relative;
  padding: 100px 32px;
  overflow: hidden;
}

.solution__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.solution__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
}

.solution__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
}

.solution__heading {
  text-align: center;
  margin-bottom: 60px;
}

.solution__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 24px;
  letter-spacing: -1.8px;
  line-height: 1.5;
}

.solution__desc {
  font-size: 15px;
  color: var(--color-primary);
  line-height: 1.8;
}

.solution__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.solution__card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  overflow: hidden;
}

.solution__card-img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

.solution__card-body {
  padding: 24px 20px 32px;
  text-align: center;
}

.solution__card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.solution__card-subtitle {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.solution__card-text {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1.8;
  text-align: left;
}

/* ========================================
   Features (Menu)
   ======================================== */
.features {
  position: relative;
  padding: 100px 32px;
  overflow: hidden;
}

.features__bg {
  position: absolute;
  inset: 0;
  background: url('images/features-bg.jpg') center/cover no-repeat;
  z-index: 0;
}

.features__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 20, 40, 0.55);
}

.features__inner {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
}

.features__heading {
  text-align: center;
  margin-bottom: 60px;
}

.features__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -1.8px;
  margin-bottom: 24px;
  line-height: 1.5;
}

.features__desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
}

.features__card {
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  padding: 48px 40px;
  display: flex;
  gap: 0;
  align-items: stretch;
}

.features__col {
  flex: 1;
  padding: 0 32px;
}

.features__col-title {
  font-family: var(--font-mincho);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 32px;
  line-height: 1.4;
}

.features__col-text {
  font-size: 14px;
  color: var(--color-primary);
  line-height: 1.8;
}

.features__divider {
  width: 1px;
  background: var(--color-line);
  flex-shrink: 0;
  align-self: stretch;
}

/* ========================================
   Cases
   ======================================== */
.cases {
  padding: 100px 32px;
}

.cases__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.cases__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 60px;
  letter-spacing: -1.8px;
}

.cases__item {
  display: grid;
  gap: 48px;
  margin-bottom: 80px;
  align-items: start;
}

.cases__item:last-child {
  margin-bottom: 0;
}

.cases__item--right {
  grid-template-columns: 1fr 1fr;
}

.cases__item--left {
  grid-template-columns: 1fr 1fr;
}

.cases__item-image {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
}

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

.cases__item-content {
  padding-top: 8px;
}

.cases__item-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.cases__item-label {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.cases__item-case {
  font-family: var(--font-roboto);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-action);
}

.cases__item-num {
  font-family: var(--font-roboto);
  font-size: 40px;
  font-weight: 600;
  color: var(--color-action);
}

.cases__item-company {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}

.cases__item-divider {
  border: none;
  border-top: 1px solid var(--color-line);
  margin: 16px 0;
}

.cases__item-summary {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.8;
  color: var(--color-primary);
}

.cases__item-detail {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-primary);
}

.cases__item-issues {
  margin-top: 24px;
}

.cases__item-issues-label {
  display: inline-block;
  background: var(--color-action);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 20px 20px 0 0;
  margin-bottom: 0;
}

.cases__item-issues-list {
  background: #f5f5f5;
  padding: 16px 24px;
  border-radius: 0 8px 8px 8px;
}

.cases__item-issues-list li {
  font-size: 13px;
  line-height: 1.8;
  padding: 12px 0;
  padding-left: 28px;
  position: relative;
  border-bottom: 1px solid var(--color-line);
}

.cases__item-issues-list li:last-child {
  border-bottom: none;
}

.cases__item-issues-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-action);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3 7l3 3 5-5' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 14px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ========================================
   Plans
   ======================================== */
.plans {
  position: relative;
  padding: 100px 32px;
}

.plans__bg {
  position: absolute;
  inset: 0;
  background: var(--color-bg-light);
  z-index: 0;
}

.plans__inner {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
}

.plans__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 60px;
  letter-spacing: -1.8px;
  line-height: 1.5;
}

.plans__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  overflow: visible;
  background: var(--color-white);
}

.plans__card:first-child .plans__card-header {
  border-radius: 7px 0 0 0;
}

.plans__card:last-child .plans__card-header {
  border-radius: 0 7px 0 0;
}

.plans__card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 40px;
  min-height: 529px;
  border-right: 1px solid var(--color-line);
}

.plans__card:last-child {
  border-right: none;
}

.plans__card--recommended {
  position: relative;
}

.plans__card-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-key);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  padding: 1px 13px;
  border-radius: 12px;
  z-index: 2;
  white-space: nowrap;
  min-width: 72px;
  height: 23px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.plans__card-header {
  width: 100%;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mincho);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-white);
}

.plans__card-header--trial {
  background: var(--color-tertiary);
}

.plans__card-header--basic {
  background: var(--color-action);
}

.plans__card-header--enterprise {
  background: var(--color-key);
}

.plans__card-body {
  padding: 32px 32px 0;
  text-align: center;
}

.plans__card-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 5px;
  margin-bottom: 24px;
  color: var(--color-action);
}

.plans__card-yen {
  font-family: var(--font-roboto);
  font-size: 26px;
  font-weight: 500;
}

.plans__card-amount {
  font-family: var(--font-roboto);
  font-size: 36px;
  font-weight: 600;
}

.plans__card-amount--text {
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 700;
}

.plans__card-tilde {
  font-family: var(--font-roboto);
  font-size: 36px;
  font-weight: 300;
}

.plans__card-tax {
  font-size: 14px;
  font-weight: 500;
}

.plans__card-desc {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.5;
  margin-bottom: 32px;
}

.plans__card-features {
  padding: 0 32px;
  width: 100%;
}

.plans__card-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.8;
  padding: 8px 0;
}

.plans__card-feature::before {
  content: '';
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  background-size: contain;
  background-repeat: no-repeat;
}

.plans__card-feature--included {
  color: var(--color-action);
}

.plans__card-feature--included::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14' fill='none'%3E%3Ccircle cx='7' cy='7' r='7' fill='%232D5A27'/%3E%3Cpath d='M4 7l2 2 4-4' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.plans__card-feature--excluded {
  color: var(--color-tertiary);
}

.plans__card-feature--excluded::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14' fill='none'%3E%3Ccircle cx='7' cy='7' r='7' fill='%23D2CDC6'/%3E%3Cpath d='M5 5l4 4M9 5l-4 4' stroke='white' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
}

/* ========================================
   Flow
   ======================================== */
.flow {
  padding: 100px 32px;
}

.flow__inner {
  max-width: 1000px;
  margin: 0 auto;
}

.flow__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 60px;
  letter-spacing: -1.8px;
  line-height: 1.5;
}

.flow__steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}

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

.flow__step-badge {
  background: var(--color-action);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-right: 1px solid rgba(255, 255, 255, 0.3);
}

.flow__step:last-child .flow__step-badge {
  border-right: none;
}

.flow__step-label {
  font-family: var(--font-roboto);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-white);
}

.flow__step-num {
  font-family: var(--font-roboto);
  font-size: 32px;
  font-weight: 600;
  color: var(--color-white);
}

.flow__step-content {
  border: 1px solid var(--color-line);
  border-top: none;
  flex: 1;
}

.flow__step-title {
  background: var(--color-bg-light);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-line);
}

.flow__step-text {
  padding: 20px 16px;
  font-size: 12px;
  line-height: 1.8;
  color: var(--color-primary);
}

/* ========================================
   CTA (Contact Form)
   ======================================== */
.cta {
  background: var(--color-action);
  padding: 80px 32px 100px;
}

.cta__inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta__heading {
  text-align: center;
  margin-bottom: 48px;
  color: var(--color-white);
}

.cta__title {
  font-family: var(--font-mincho);
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -1.8px;
  margin-bottom: 20px;
  line-height: 1.5;
}

.cta__desc {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
}

.cta__form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.cta__message {
  padding: 14px 20px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  text-align: center;
}

.cta__message--success {
  background: #e8f5e9;
  color: #2e7d32;
}

.cta__message--error {
  background: #fbe9e7;
  color: #c62828;
}

.cta__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cta__label {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-white);
  line-height: 1.5;
}

.cta__required {
  color: #ff6b6b;
  font-size: 14px;
  font-weight: 500;
  margin-left: 4px;
}

.cta__input {
  width: 100%;
  height: 50px;
  border: 1px solid #dadada;
  border-radius: 4px;
  padding: 0 16px;
  font-size: 15px;
  font-family: var(--font-sans);
  background: var(--color-white);
  color: var(--color-form-text);
  outline: none;
  transition: border-color 0.2s;
}

.cta__input::placeholder {
  color: #aaa;
  font-size: 14px;
}

.cta__input:focus {
  border-color: var(--color-key);
}

.cta__textarea {
  width: 100%;
  min-height: 140px;
  border: 1px solid #dadada;
  border-radius: 4px;
  padding: 16px;
  font-size: 15px;
  font-family: var(--font-sans);
  background: var(--color-white);
  color: var(--color-form-text);
  outline: none;
  resize: vertical;
  transition: border-color 0.2s;
}

.cta__textarea::placeholder {
  color: #aaa;
  font-size: 14px;
}

.cta__textarea:focus {
  border-color: var(--color-key);
}

.cta .btn--primary {
  background: var(--color-key);
  margin-top: 8px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-action);
  padding: 0 32px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.footer__copy {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-white);
  line-height: 1.5;
}

/* ========================================
   Responsive: Tablet (max-width: 1024px)
   ======================================== */
@media (max-width: 1024px) {
  .header__nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--color-action);
    flex-direction: column;
    padding: 24px 32px;
    gap: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .header__nav.is-open {
    display: flex;
  }

  .header__cta {
    align-self: flex-start;
  }

  .header__menu-btn {
    display: flex;
  }

  .problem__cards {
    flex-wrap: wrap;
  }

  .problem__card {
    flex: 1 1 calc(50% - 1px);
    border-bottom: 1px solid var(--color-line);
  }

  .problem__card:nth-child(2) {
    border-right: none;
  }

  .problem__card:nth-child(3),
  .problem__card:nth-child(4) {
    border-bottom: none;
  }

  .solution__cards {
    grid-template-columns: 1fr;
    max-width: 400px;
    gap: 32px;
  }

  .features__card {
    flex-direction: column;
    padding: 32px 24px;
    gap: 32px;
  }

  .features__divider {
    width: 100%;
    height: 1px;
  }

  .features__col {
    padding: 0;
  }

  .features__col-title {
    margin-bottom: 16px;
  }

  .cases__item {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cases__item--right,
  .cases__item--left {
    grid-template-columns: 1fr;
  }

  .cases__item--left .cases__item-image {
    order: -1;
  }

  .cases__item-content {
    max-width: 100%;
  }

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

  .plans__card {
    border-right: none;
    border-bottom: 1px solid var(--color-line);
    min-height: auto;
  }

  .plans__card:last-child {
    border-bottom: none;
  }

  .flow__steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========================================
   Responsive: Mobile (max-width: 768px)
   ======================================== */
@media (max-width: 768px) {
  .problem__lead {
    font-size: 22px;
  }

  .problem__cards {
    flex-direction: column;
  }

  .problem__card {
    flex: none;
    border-right: none;
  }

  .problem__card:nth-child(2) {
    border-bottom: 1px solid var(--color-line);
  }

  .problem__card:nth-child(3) {
    border-bottom: 1px solid var(--color-line);
  }

  .cta-mid__text {
    font-size: 18px;
  }

  .solution__title,
  .features__title,
  .cases__title,
  .plans__title,
  .flow__title,
  .cta__title {
    font-size: 26px;
  }

  .features__col-title {
    font-size: 20px;
  }

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

  .btn {
    font-size: 16px;
    padding: 16px 32px;
  }

  .cta__inner {
    max-width: 100%;
  }
}