:root {
    --primary: #049933;
    --primary-dark: #056423;
    --secondary: #4f4f4f;
    --light: #f8f9fa;
    --dark: #333333;
    --accent: #27ae60;
    --text: #4f4f4f;
    --text-light: #828282;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

.error-message {
    color: #ff4d4d;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.error-message:not(:empty) {
    display: block;
}

.form-input.error {
    border-color: #ff4d4d;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: 'Montserrat', serif;
    font-weight: 600;
    color: var(--dark);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}


.fs-button-group {
  display: flex;
  flex-direction: row-reverse;
  column-gap: 1.5rem;
}

.appointmenttt {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.fs-button {
  background-color: var(--color-primary);
  border-radius: 0.375rem;
  color: white;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1rem;
  padding: 1rem 2rem;
  transition-duration: 200ms;
  transition-property: background-color;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.fs-button:hover {
  background-color: var(--color-primary-active);
}

.fs-button:focus-visible {
  background-color: var(--color-primary-active);
  outline: 3px solid var(--color-highlight);
}


.btn { position: relative; }
.btn[disabled] { cursor: progress; opacity: .85; }

/* Сам спиннер поверх кнопки, когда она disabled */
.btn[disabled]::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 12px;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  transform: translateY(-50%);
  animation: btnspin .8s linear infinite;
}
@keyframes btnspin {
  to { transform: translateY(-50%) rotate(360deg); }
}


.btn {
    display: inline-block;
    background-color: var(--primary);
    color: var(--white);
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(45, 156, 219, 0.2);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.section {
    padding: 100px 0;
}

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

.section-title h2 {
    font-size: 42px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--dark);
}