/* ═══════════════════════════════════════════════════════════════
   buttons.css — All Button Variants
   ═══════════════════════════════════════════════════════════════ */

/* ── Dark button (navbar CTA) ── */
.btn-dark {
    background: #151515;
    color: var(--color-white);
    font-family: "Montserrat", sans-serif;
    font-weight: 600;
    font-style: normal;
    font-size: 20px;
    text-transform: uppercase;
    border-radius: 10px;
    width: 208px;
    height: 60px;
    padding: 0 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition:
        background var(--transition-base),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
    text-decoration: none;
    box-sizing: border-box;
    border: none;
    line-height: 1;
    will-change: transform;
}

.btn-dark p {
    margin: 0;
    padding: 0;
    line-height: 1;
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

.btn-dark .btn-icon {
    transform: translateZ(0);
    backface-visibility: hidden;
}

.btn-dark:hover {
    background: var(--color-primary);
    transform: scale(1.03);
}

/* ── Responsive button sizing ── */
@media (max-width: 768px) {
    .btn-dark {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 640px) {
    .btn-dark {
        width: 100%;
        max-width: 280px;
    }
}

/* ── Outline Dark button (MY PROJECTS) ── */
.btn-outline-dark {
    background: transparent;
    color: #151515;
    font-family: "Montserrat", sans-serif;
    font-weight: 600;
    font-style: normal;
    font-size: 20px;
    text-transform: uppercase;
    border-radius: 10px;
    border: 1.5px solid rgba(21, 21, 21, 0.22);
    width: 208px;
    height: 60px;
    padding: 0 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition:
        background var(--transition-base),
        color var(--transition-base),
        border var(--transition-base),
        transform var(--transition-fast);
    text-decoration: none;
}

.btn-outline-dark:hover {
    background: #151515;
    color: #fff;
    border-color: #151515;
    transform: scale(1.03);
}

.btn-outline-dark .btn-icon {
    filter: brightness(0);
    transition: filter var(--transition-base);
}

.btn-outline-dark:hover .btn-icon {
    filter: brightness(0) invert(1);
}

/* ── Responsive button sizing ── */
@media (max-width: 768px) {
    .btn-outline-dark {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 640px) {
    .btn-outline-dark {
        width: 100%;
        max-width: 280px;
    }
}

/* ── Blue button ── */
.btn-blue {
    background: var(--color-primary);
    color: var(--color-btn-blue);
    font-family: var(--font-kanit);
    font-weight: 550;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-pill);
    padding: clamp(0.55rem, 1.5vw, 1rem) clamp(1.1rem, 3vw, 1.8rem);
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
    text-decoration: none;
}

.btn-blue:hover {
    transform: scale(1.04);
    box-shadow: var(--shadow-blue-md);
}

/* ── Outline button ── */
.btn-outline {
    background: transparent;
    color: var(--color-dark);
    font-family: var(--font-kanit);
    font-weight: 700;
    font-size: clamp(0.8rem, 2.2vw, 1.1rem);
    letter-spacing: 1px;
    border-radius: var(--radius-pill);
    border: 1.5px solid var(--color-dark);
    padding: clamp(0.55rem, 1.5vw, 1rem) clamp(1.1rem, 3vw, 1.8rem);
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    transition:
        transform var(--transition-fast),
        background 0.2s,
        color 0.2s;
    text-decoration: none;
}

.btn-outline:hover {
    transform: scale(1.04);
    box-shadow: 0 6px 20px rgba(172, 195, 250, 0.4);
}

.btn-outline img {
    filter: invert(1);
}

/* ── Blue submit button (contact form) ── */
.btn-blue-submit {
    background: var(--color-primary);
    color: var(--color-btn-blue);
    font-family: var(--font-kanit);
    font-weight: 550;
    font-size: 0.85rem;
    border-radius: var(--radius-pill);
    padding: 1rem 1.2rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        background var(--transition-base);
    font-family: inherit;
}

.btn-blue-submit:hover {
    transform: scale(1.04);
    box-shadow: var(--shadow-blue-lg);
}

.btn-blue-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-blue-submit img {
    width: 0.8rem;
    height: auto;
    filter: brightness(0) invert(1);
}

/* ── Success state (toggled via JS class) ── */
.btn-blue-submit--success {
    background: var(--color-success);
}

/* ── Arrow icons in buttons ── */
.btn-icon {
    width: 0.75rem;
    height: 0.75rem;
}

.btn-icon--md {
    width: 1rem;
    height: 1rem;
}