/* <!-- GLOBAL --> */

:root {
    --bg: #f7f8fb;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-weak: #e7efff;
    --ring: #93c5fd;
    --danger: #ef4444;
    --radius: 18px;
    --shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

* {
    box-sizing: border-box
}

html,
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif
}

.wrap {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 16px;
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
}

h1 {
    font-size: clamp(22px, 3.5vw, 32px);
    line-height: 1.2;
    margin: 0 0 18px;
    letter-spacing: .2px;
}

.subtitle {
    color: var(--muted);
    margin-bottom: 26px;
    font-size: 14px;
}

form {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* full width rows */
.col-span-2 {
    grid-column: 1 / -1;
}

label {
    display: block;
    font-weight: 600;
    font-size: 13px;
    margin: 0 0 8px;
}

.req::after {
    content: " *";
    color: var(--danger);
}

.field {
    position: relative;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
    width: 100%;
    background: #f3f6ff;
    border: 1.5px solid transparent;
    border-radius: 14px;
    padding: 14px 14px;
    font-size: 15px;
    transition: .18s border-color, .18s box-shadow, .18s background;
    outline: none;
}

textarea {
    min-height: 160px;
    resize: vertical
}

input:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--ring);
    background: #fff;
}

/* grid items */
.grid-2 {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* custom file input */
.file {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f3f6ff;
    border: 1.5px dashed #cbd5e1;
    border-radius: 14px;
    padding: 12px;
    transition: .18s border-color, .18s background;
}

.file:hover {
    border-color: #a7b5c9;
    background: #eef3ff;
}

.file input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file .btn {
    padding: 10px 14px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    flex: 0 0 auto;
}

.file .hint {
    color: var(--muted);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* button row */
.actions {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: flex-end;
    margin-top: 8px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 18px;
    border-radius: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: .18s transform, .18s box-shadow, .18s background;
    box-shadow: 0 8px 16px rgba(37, 99, 235, .18);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.note {
    font-size: 12px;
    color: var(--muted);
}

/* responsive */
@media (max-width: 820px) {
    form {
        grid-template-columns: 1fr;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .actions {
        justify-content: stretch
    }

    .btn-primary {
        width: 100%
    }
}


/* <!-- ERROR --> */

/* --- Validacija / error stanja --- */
.field.error input,
.field.error textarea,
.field.error .file {
    border-color: var(--danger) !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, .18);
    /* suptilan ring */
    background: #fff;
}

.error-msg {
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.4;
    color: var(--danger);
    background: #fff3f3;
    border: 1px solid rgba(239, 68, 68, .25);
    padding: 8px 10px;
    border-radius: 10px;
    opacity: 0;
    transform: translateY(-2px);
    transition: opacity .18s ease, transform .18s ease;
}

.field.error .error-msg {
    opacity: 1;
    transform: translateY(0);
}

/* diskretna animacija kad fokusiramo polje s greškom */
@keyframes gentle-shake {

    0%,
    100% {
        transform: translateX(0)
    }

    25% {
        transform: translateX(2px)
    }

    75% {
        transform: translateX(-2px)
    }
}

.field.error input:focus,
.field.error textarea:focus {
    animation: gentle-shake .18s;
}


/* <!-- RESPONSE MESSAGE --> */

.success-msg {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 20px;
    display: none;
    box-shadow: 0 8px 18px rgba(16, 185, 129, .15);
    animation: fadeIn .3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* <!-- SPINNER --> */

.btn-primary.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-primary.loading::after {
    content: "";
    position: absolute;
    right: 14px;
    top: 50%;
    width: 16px;
    height: 16px;
    margin-top: -8px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}