:root {
    --c-bg: #f0f9ff;
    --c-primary: #6d28d9;
    --c-primary-dark: #4c1d95;
    --c-accent: #0ea5e9;
    --c-highlight: #facc15;
    --c-text-main: #0f172a;
    --c-text-sub: #334155;

    --font-display: 'Fredoka', sans-serif;
    --font-body: 'Nunito', sans-serif;
}

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

body {
    background-color: var(--c-bg);
    font-family: var(--font-body);
    color: var(--c-text-main);
    line-height: 1.6;
    background-image: radial-gradient(#bae6fd 20%, transparent 20%);
    background-position: 0 0, 15px 15px;
    background-size: 30px 30px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--c-primary);
    margin-bottom: 0.5rem;
    text-shadow: none;
}

.page-header p {
    color: var(--c-text-sub);
    font-size: 1.1rem;
}

.contact-form {
    background: white;
    border-radius: 24px;
    padding: 3rem;
    border: 1px solid #e2e8f0;
}

.section-title {
    font-family: var(--font-display);
    color: var(--c-primary);
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}

.section-title:first-of-type {
    margin-top: 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--c-text-main);
    font-family: var(--font-display);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--c-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23334155' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.helper-text {
    font-size: 0.85rem;
    color: var(--c-text-sub);
    margin-top: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    border-radius: 99px;
    font-weight: 800;
    font-family: var(--font-display);
    cursor: pointer;
    font-size: 1.1rem;
    border: none;
    transition: background-color 0.2s, color 0.2s, transform 0.1s;
    text-decoration: none;
    gap: 0.5rem;
}

.btn:active {
    transform: translateY(2px);
}

.btn:hover {
    filter: brightness(1.1);
}

.btn-primary {
    background: var(--c-highlight);
    color: #422006;
    width: 100%;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    color: var(--c-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    text-decoration: none;
    font-weight: 700;
    border: 2px solid #e2e8f0;
    transition: background-color 0.2s;
    margin-bottom: 2rem;
}

.btn-back:hover,
#uploadMoreBtn:hover {
    background: #f8fafc;
    filter: none;
}

.icon {
    vertical-align: middle;
    font-size: 1.2em;
    margin-bottom: 2px;
    margin-right: 4px;
}

.footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 2rem 1rem;
    text-align: center;
    font-size: 0.9rem;
    margin-top: 4rem;
}

.custom-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: white;
    padding: 1.5rem;
    border-radius: 20px;
    border: 3px solid var(--c-highlight);
    z-index: 1000;
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--c-text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    max-width: 400px;
    opacity: 0;
    transform: translateY(100px);
    transition: opacity 0.3s, transform 0.3s;
}

.custom-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.custom-toast.success {
    border-color: #22c55e;
}

.custom-toast.error {
    border-color: #ef4444;
}

.custom-toast .icon {
    font-size: 28px;
    flex-shrink: 0;
}

.file-preview-card {
    position: relative;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.75rem;
    min-width: 150px;
    max-width: 200px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.file-preview-card:hover {
    background: #fee;
    border-color: #ef4444;
}

.file-preview-card:hover::after {
    content: 'Click to delete';
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    pointer-events: none;
}

.file-preview-card .icon {
    font-size: 24px;
    color: var(--c-primary);
    flex-shrink: 0;
}

.file-preview-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444;
}

.info-expandable {
    margin-top: 0.75rem;
}

.info-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: none;
    color: var(--c-accent);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    transition: opacity 0.2s;
}

.info-toggle:hover {
    opacity: 0.7;
}

.info-toggle .icon {
    font-size: 18px;
    margin: 0;
}

.info-toggle .expand-icon {
    margin-left: auto;
    transition: transform 0.3s;
    font-size: 20px;
}

.info-toggle.active .expand-icon {
    transform: rotate(180deg);
}

.info-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.info-content.show {
    max-height: 200px;
}

.info-content p {
    margin-top: 0.75rem;
    padding: 1rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--c-text-sub);
    line-height: 1.6;
}