/* ------------------------------
YOUTUBE URL INPUT OVERLAY
------------------------------ */

.loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 3vw, 32px);
    overflow: auto;

    background:
        radial-gradient(circle at 15% 20%, rgba(126, 161, 255, 0.20), transparent 28%),
        radial-gradient(circle at 85% 18%, rgba(86, 123, 255, 0.16), transparent 24%),
        radial-gradient(circle at 50% 100%, rgba(255, 255, 255, 0.55), transparent 42%),
        linear-gradient(135deg, #edf2ff 0%, #e6edff 32%, #dde7ff 100%);
}

/* soft background glow */
.loader-overlay::before,
.loader-overlay::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    filter: blur(60px);
    pointer-events: none;
}

.loader-overlay::before {
    width: 280px;
    height: 280px;
    top: 8%;
    left: 6%;
    background: rgba(106, 138, 255, 0.20);
}

.loader-overlay::after {
    width: 320px;
    height: 320px;
    right: 6%;
    bottom: 6%;
    background: rgba(255, 255, 255, 0.45);
}

/* card */

.loader-card {
    position: relative;
    z-index: 1;
    width: min(100%, 820px);
    padding: clamp(22px, 4vw, 42px);
    border-radius: 30px;
    text-align: center;

    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.78) 100%);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);

    border: 1px solid rgba(255, 255, 255, 0.75);

    box-shadow:
        0 24px 80px rgba(53, 74, 138, 0.16),
        0 8px 24px rgba(53, 74, 138, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

/* subtle inner ring */
.loader-card::before {
    content: "";
    position: absolute;
    inset: 10px;
    border-radius: 22px;
    border: 1px solid rgba(120, 143, 211, 0.12);
    pointer-events: none;
}

/* badge */

.loader-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 16px;

    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;

    color: #3150a8;
    background: linear-gradient(180deg, #ffffff 0%, #f2f6ff 100%);
    border: 1px solid rgba(76, 125, 255, 0.14);

    box-shadow:
        0 8px 20px rgba(76, 125, 255, 0.10),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* title */

.loader-title {
    margin: 0;
    color: #0f172a;
    font-size: clamp(28px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.04em;
}

/* subtitle */

.loader-subtitle {
    width: min(100%, 620px);
    margin: 14px auto 0;
    color: #5d6b83;
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.7;
    font-weight: 500;
}

/* input section */

.loader-input-wrap {
    width: 100%;
    margin-top: 28px;
    display: flex;
    align-items: stretch;
    gap: 12px;
}

/* input */

.loader-input {
    flex: 1;
    min-width: 0;
    height: 60px;
    padding: 0 18px;
    border-radius: 18px;
    border: 1px solid rgba(95, 117, 171, 0.18);

    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(247, 250, 255, 0.95) 100%);
    color: #292929;

    font-size: 15px;
    font-weight: 600;
    outline: none;

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.95),
        0 8px 18px rgba(49, 80, 168, 0.06);

    transition:
        border-color .22s ease,
        box-shadow .22s ease,
        transform .22s ease,
        background .22s ease;
}

.loader-input::placeholder {
    color: #93a0b6;
    font-weight: 500;
}

.loader-input:hover {
    border-color: rgba(76, 125, 255, 0.24);
}

.loader-input:focus {
    border-color: rgba(76, 125, 255, 0.52);
    background: #ffffff;
    box-shadow:
        0 0 0 4px rgba(76, 125, 255, 0.12),
        0 14px 30px rgba(76, 125, 255, 0.10);
    transform: translateY(-1px);
}

/* button */

.loader-btn {
    flex: 0 0 auto;
    height: 60px;
    padding: 0 24px;
    border: none;
    border-radius: 18px;

    background: linear-gradient(135deg, #2148c0 0%, #4c7dff 52%, #6b97ff 100%);
    color: #ffffff;

    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.01em;
    white-space: nowrap;
    cursor: pointer;

    box-shadow:
        0 16px 32px rgba(76, 125, 255, 0.26),
        inset 0 1px 0 rgba(255, 255, 255, 0.24);

    transition:
        transform .22s ease,
        box-shadow .22s ease,
        opacity .22s ease,
        filter .22s ease;
}

.loader-btn:hover {
    transform: translateY(-2px);
    box-shadow:
        0 20px 36px rgba(76, 125, 255, 0.32),
        inset 0 1px 0 rgba(255, 255, 255, 0.28);
    filter: saturate(1.05);
}

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

.loader-btn.loading {
    opacity: 0.75;
    pointer-events: none;
}

/* note */

.loader-note {
    margin-top: 14px;
    color: #6e7b93;
    font-size: 13px;
    line-height: 1.55;
    font-weight: 600;
}

.loader-note.error {
    color: #d92b2b;
}

/* hide overlay */

.loader-overlay.hide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity .35s ease,
        visibility .35s ease;
}

/* ------------------------------
RESPONSIVE
------------------------------ */

@media (max-width: 1024px) {
    .loader-card {
        width: min(100%, 760px);
    }

    .loader-input-wrap {
        gap: 10px;
    }
}

@media (max-width: 768px) {
    .loader-overlay {
        align-items: center;
        padding: 18px;
    }

    .loader-card {
        width: 100%;
        border-radius: 24px;
        padding: 24px 18px 20px;
    }

    .loader-card::before {
        inset: 8px;
        border-radius: 18px;
    }

    .loader-badge {
        min-height: 32px;
        padding: 6px 12px;
        margin-bottom: 14px;
        font-size: 11px;
    }

    .loader-title {
        font-size: clamp(26px, 8vw, 36px);
        line-height: 1.12;
    }

    .loader-subtitle {
        margin-top: 12px;
        font-size: 14px;
        line-height: 1.65;
    }

    .loader-input-wrap {
        margin-top: 22px;
        flex-direction: column;
    }

    .loader-input,
    .loader-btn {
        width: 100%;
        height: 56px;
        border-radius: 16px;
    }

    .loader-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .loader-overlay {
        padding: 14px;
    }

    .loader-card {
        padding: 20px 14px 16px;
        border-radius: 20px;
    }

    .loader-title {
        font-size: 24px;
    }

    .loader-subtitle {
        font-size: 13px;
        line-height: 1.6;
    }

    .loader-input {
        padding: 0 14px;
        font-size: 14px;
    }

    .loader-btn {
        padding: 0 18px;
        font-size: 14px;
    }

    .loader-note {
        font-size: 12px;
    }
}

@media (max-height: 620px) {
    .loader-overlay {
        align-items: flex-start;
    }

    .loader-card {
        margin-top: 18px;
    }
}