html, body {
  scroll-behavior: smooth;
  background-color: black;
  margin: 0;
  padding: 0;
}

body {
    height: 2000px;
    opacity: 0;               /* Start invisible */
    transition: opacity 2s ease; /* Smooth fade */
    animation: fadeIn 2s forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;             /* Fade to fully visible */
  }
}

.maintypography {
    font-family: "Inter", "Inter Placeholder", sans-serif;
    color: white;
    text-align: center;
    font-size: clamp(40px, 10vw, 80px);
    letter-spacing: 3px;
    line-height: 1em;
    font-weight: 700;
}

.typography {
  font-family: "Inter", "Inter Placeholder", sans-serif; /* match maintypography */
  color: #fff;
  text-align: center;
  font-size: clamp(1rem, 1.3vw, 1.25rem); /* smaller than headline but responsive */
  letter-spacing: 2px; /* like maintypography but smaller */
  line-height: 1.15; /* good for body text */
  font-weight: 600; /* match headline weight */
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
/* Killer case section */

section.killercase {
    width: 100%;
    padding: 50px 0;
    box-sizing: border-box;
}

/* Problem blocks */
.problem1,
.problem2 {
    position: relative;
    width: 90%;
    margin: 50px auto; /* center horizontally */
    border-radius: 20px;
    background: white;
    background-size: cover;
    background-position: center;
    overflow: hidden; /* ensures rounded corners clip children */
    padding: 30px 20px; /* add spacing inside */
}

/* Specific backgrounds */
.problem1 {
    background-image: url('../images/linebackground.jpg');
}

.problem2 {
    background-image: url('../images/linebackground2.png');
}

/* Remove fixed height to make it responsive */
.problem1 .problem-content,
.problem2 .problem-content {
    min-height: 300px; /* optional for visual consistency */
}

/* Keep text and image flex layouts responsive */
.problem-content {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    flex-wrap: wrap;
}

.problem-content.reverse {
    flex-direction: row-reverse;
}

.problem-image {
    flex: 1 1 300px;
}

.problem-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* How it works section */

.howitworks {
    background-color: black;
    height: auto;
    margin-bottom: 50px;
    --backgroundfirstrow: linear-gradient(white 0%, white 70%, #00F0FF);
    --backgroundsecondrow: linear-gradient(170deg,#ffffff 0%,#ffe6f9 70%,#ff99f2 85%,#ff00f7 100%);
    --backgroundthirdrow: linear-gradient(#ffffff 0%, #ffffff 50%, #ffd1a3 80%, #ff944d 100%);
}

/* ---- Desktop: keep the same visual size but use min-height (safer) ---- */
@media (min-width: 992px) {
  section.howitworks .firstrow-left,
  section.howitworks .firstrow-center,
  section.howitworks .firstrow-right {
    background: var(--backgroundfirstrow);
    min-height: 600px;     /* desktop visual height preserved */
    max-height: 600px;
    height: auto;
    border-radius: 50px;
  }

  section.howitworks .secondrow {
    background: var(--backgroundsecondrow);
    min-height: 500px;
    max-height: 600px;
    border-radius: 50px;
  }

  section.howitworks .thirdrow-left,
  section.howitworks .thirdrow-center {
    background: var(--backgroundthirdrow);
    min-height: 400px;
    height: auto;
    border-radius: 50px;
  }
  section.howitworks .thirdrow-right {
    background: linear-gradient(#ffffff 0%, #ffffff 50%, #acffbb 80%, #69ff4e 100%);
    min-height: 400px;
    height: auto;
    border-radius: 50px;
  }
}

/* ---- Mobile / tablet - Bootstrap */
@media (max-width: 991px) {
  section.howitworks .firstrow-left,
  section.howitworks .firstrow-center,
  section.howitworks .firstrow-right {
    height: auto !important;
    min-height: 65vh !important;    /* tall enough on narrow screens */
    border-radius: 50px;
    background: var(--backgroundfirstrow);
  }

  section.howitworks .secondrow {
    height: auto !important;
    min-height: 140vh !important;
    max-height: 140vh;
    border-radius: 50px;
    background: var(--backgroundsecondrow);
  }

  section.howitworks .thirdrow-left {
    height: auto !important;
    min-height: 25vh !important;
    border-radius: 50px;
    background: var(--backgroundthirdrow);
  }

  section.howitworks .thirdrow-center {
    height: auto !important;
    min-height: 25vh !important;
    border-radius: 50px;
    background: var(--backgroundthirdrow);
  }

  section.howitworks .thirdrow-right {
    height: auto !important;
    min-height: 60vh !important;
    border-radius: 50px;
    background: linear-gradient(white 0%, white 80%, #39FF14);
  }
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(to top, #ffffff 0%, #ffffff 50%, #3b82f6 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(119, 102, 102, 0.132);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    top: 80%;
    left: 20%;
    animation-delay: 1s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 10%;
    right: 30%;
    animation-delay: 0s;
}

.shape-5 {
    width: 140px;
    height: 140px;
    top: 20%;
    left: 85%;
    animation-delay: 1s;
}

.shape-6 {
    width: 80px;
    height: 80px;
    top: 70%;
    left: 20%;
    animation-delay: 2s;
}

.shape-7 {
    width: 120px;
    height: 120px;
    top: 50%;
    left: 40%;
    animation-delay: 0s;
}

.shape-8 {
    width: 50px;
    height: 50px;
    top: 70%;
    right: 22%;
    animation-delay: 1s;
}

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: slideUp 1s ease 0.2s forwards;
}

.title-line {
    font-family: inherit;
    display: block;
    margin-bottom: 0.2rem;
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a5568;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: slideUp 1s ease 0.4s forwards;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: slideUp 1s ease 0.6s forwards;
}

.primary-button {
    background: linear-gradient(to right, #6672f4, #0843e6);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.primary-button:hover {
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.primary-button.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.2rem;
}

.button-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.primary-button:hover .button-glow {
    left: 100%;
}

.secondary-button {
    background: transparent;
    color: #6672f4;
    border: 2px solid #6672f4;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.secondary-button:hover {
    background: #667eea;
    color: white;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.outline-button {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.outline-button:hover {
    background: #667eea;
    color: white;
}

.outline-button.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.2rem;
}

.play-icon {
    width: 0;
    height: 0;
    border-left: 8px solid currentColor;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;

}